1 00:00:00,000 --> 00:00:04,000 on this Blockbuster episode of Mythbusters. 2 00:00:04,000 --> 00:00:10,000 We're gonna need a bigger boat. 3 00:00:10,000 --> 00:00:14,000 Adam and Jamie set sail for summer 4 00:00:14,000 --> 00:00:18,000 with an all-new Shark Week spectacular. 5 00:00:18,000 --> 00:00:20,000 Yeah! 6 00:00:20,000 --> 00:00:21,000 Oh, my God, a hit! 7 00:00:21,000 --> 00:00:24,000 They're literally putting their lives on the line. 8 00:00:24,000 --> 00:00:26,000 Nothing to test, man! 9 00:00:26,000 --> 00:00:29,000 To find out, first, our magnets, 10 00:00:29,000 --> 00:00:32,000 the new wave in shark repelling technology. 11 00:00:32,000 --> 00:00:35,000 I'm gonna come in and urinate again in my wet suit, okay? 12 00:00:35,000 --> 00:00:39,000 Then, during the frenzy of a shark attack, 13 00:00:39,000 --> 00:00:43,000 can you find and poke a shark in the eye? 14 00:00:43,000 --> 00:00:46,000 I don't want you to choke on my helmet, boat! 15 00:00:46,000 --> 00:00:49,000 Next, there's the shaggy dog story. 16 00:00:49,000 --> 00:00:50,000 I didn't train him to do that. 17 00:00:50,000 --> 00:00:55,000 That sharks find our furry friends irresistible. 18 00:00:55,000 --> 00:00:58,000 And then the team ramp up the fear factor. 19 00:00:58,000 --> 00:01:00,000 Holy crap! 20 00:01:00,000 --> 00:01:04,000 To find out if flashlights really do attract sharks. 21 00:01:04,000 --> 00:01:06,000 Ah! Ah! Ah! 22 00:01:06,000 --> 00:01:08,000 I was freaked out. 23 00:01:11,000 --> 00:01:13,000 Who are the Mythbusters? 24 00:01:13,000 --> 00:01:15,000 Adam Savage. 25 00:01:15,000 --> 00:01:18,000 You don't want to mix blur with blur. 26 00:01:18,000 --> 00:01:19,000 And Jamie Heineman. 27 00:01:19,000 --> 00:01:22,000 I want to see what this puppy can do. 28 00:01:22,000 --> 00:01:26,000 Between them more than 30 years of special effects experience. 29 00:01:26,000 --> 00:01:28,000 Everybody okay? 30 00:01:28,000 --> 00:01:31,000 Joining them, Carrie Byron. 31 00:01:31,000 --> 00:01:32,000 Let's do it. 32 00:01:32,000 --> 00:01:33,000 Tori Bellachy. 33 00:01:33,000 --> 00:01:34,000 Give me all your cash! 34 00:01:34,000 --> 00:01:36,000 And Grant Imahara. 35 00:01:36,000 --> 00:01:37,000 Ha ha ha ha! 36 00:01:37,000 --> 00:01:38,000 Whee! 37 00:01:38,000 --> 00:01:40,000 They don't just tell the myths. 38 00:01:40,000 --> 00:01:41,000 I like it. 39 00:01:41,000 --> 00:01:43,000 They put them to the test. 40 00:01:52,000 --> 00:02:03,000 Alright, if we're all in the same room together, it must mean something special is about to happen. 41 00:02:03,000 --> 00:02:05,000 Indeed, you are correct. 42 00:02:05,000 --> 00:02:06,000 Alright, so what is it? 43 00:02:06,000 --> 00:02:07,000 Sharks! 44 00:02:07,000 --> 00:02:08,000 Sharks! 45 00:02:08,000 --> 00:02:12,000 Ha ha ha! Yes, it's the Mythbusters Shark Bite Extravaganza. 46 00:02:12,000 --> 00:02:15,000 Well that's perfect, because we have a ton of shark myths ready to go. 47 00:02:15,000 --> 00:02:19,000 Absolutely, we've got myths about repelling sharks, myths about attracting sharks, 48 00:02:19,000 --> 00:02:23,000 and you and I, my friend, are starting out with the myth about fending off a shark attack. 49 00:02:23,000 --> 00:02:24,000 How? 50 00:02:24,000 --> 00:02:25,000 Let me set the scene. 51 00:02:25,000 --> 00:02:28,000 You're on the open ocean and a shark comes along and mistakes you for a walrus, 52 00:02:28,000 --> 00:02:30,000 because anyone could. 53 00:02:30,000 --> 00:02:33,000 Grab some sharks, throw them around, what do you do? 54 00:02:33,000 --> 00:02:35,000 Well, we've already done punching sharks. 55 00:02:35,000 --> 00:02:36,000 What is it? 56 00:02:36,000 --> 00:02:37,000 Gouging their eyes? 57 00:02:37,000 --> 00:02:40,000 Yes, everyone knows sharks don't like being punched in the eyes, 58 00:02:40,000 --> 00:02:44,000 but what fans want to know is if you're being bitten by a shark and being thrown around, 59 00:02:44,000 --> 00:02:46,000 could you even find his eyes? 60 00:02:46,000 --> 00:02:51,000 It does kind of make you wonder if you'd have enough time to get the job done before your lunch. 61 00:02:53,000 --> 00:02:55,000 It's the stuff nightmares are made of. 62 00:02:57,000 --> 00:03:01,000 A man-eating shark is chewing on you like a chicken drumstick. 63 00:03:01,000 --> 00:03:08,000 In this situation, the accepted wisdom is to go for the eyes, forcing him to let you go. 64 00:03:08,000 --> 00:03:13,000 But in the frenzy of a shark attack, do you really have time to find, reach, 65 00:03:13,000 --> 00:03:16,000 and then gouge before it's too late? 66 00:03:19,000 --> 00:03:22,000 So we're not going to gouge the eyes out of a real shark? 67 00:03:22,000 --> 00:03:23,000 No. 68 00:03:23,000 --> 00:03:24,000 What do you have in mind? 69 00:03:24,000 --> 00:03:26,000 I'm taking a big fake shark. 70 00:03:26,000 --> 00:03:28,000 Big fake mechanical shark? 71 00:03:28,000 --> 00:03:32,000 Yes, I have found these taxiderm sharks made out of fiberglass. 72 00:03:32,000 --> 00:03:35,000 I'm thinking we get one of those, cut it into pieces and... 73 00:03:35,000 --> 00:03:37,000 A big robot shark that moves. 74 00:03:37,000 --> 00:03:40,000 Exactly with stop switches for eyes. 75 00:03:40,000 --> 00:03:41,000 Perfect. 76 00:03:43,000 --> 00:03:47,000 And Bruce, named after Spielberg's original animatronics monster, 77 00:03:47,000 --> 00:03:51,000 is destined to be one of the biggest builds in Mythbusters history. 78 00:03:53,000 --> 00:03:55,000 A build that's all about realism. 79 00:03:55,000 --> 00:04:01,000 Its articulated spine will thrash exactly like a shark during an attack. 80 00:04:01,000 --> 00:04:06,000 Its jaws will chomp down on its victims with an accurate bite force. 81 00:04:06,000 --> 00:04:12,000 And as per the myth, a well-aimed poke in the eyes will be the only way to get it to stop. 82 00:04:14,000 --> 00:04:18,000 Finally, the boys are going to base their robot on the Great White. 83 00:04:18,000 --> 00:04:24,000 Each year, it's this species that tops the charts in unprovoked human attacks. 84 00:04:25,000 --> 00:04:30,000 So if you're ever going to need to gouge a shark's eye to escape its clutches, 85 00:04:30,000 --> 00:04:34,000 it's most likely going to be that of jaws. 86 00:04:34,000 --> 00:04:40,000 So to kick things off, Adam is using an actual jaw of a Great White for reference. 87 00:04:40,000 --> 00:04:42,000 This is so beautiful. 88 00:04:42,000 --> 00:04:48,000 Check out all the teeth lined up, ready for service in case one gets snapped out. 89 00:04:48,000 --> 00:04:51,000 The efficiency of the design is really lovely. 90 00:04:51,000 --> 00:04:56,000 Using the computer, he's carefully recreating that design in steel. 91 00:04:56,000 --> 00:04:59,000 But Bruce's mouthful of metal won't be tested on humans. 92 00:04:59,000 --> 00:05:03,000 For that, he'll also need a safe set of test teeth. 93 00:05:03,000 --> 00:05:06,000 While we are making a nice, sharp set of steel teeth for him, 94 00:05:06,000 --> 00:05:10,000 we are also making a set of cosmetic teeth, because when we get into them, 95 00:05:10,000 --> 00:05:12,000 we don't want them to look like this. 96 00:05:14,000 --> 00:05:16,000 Some real shark teeth. 97 00:05:16,000 --> 00:05:21,000 So we are making a second mouth for him, full of teeth with gum rubber teeth 98 00:05:21,000 --> 00:05:24,000 that will be safe for us to get in, but still look totally awesome. 99 00:05:24,000 --> 00:05:27,000 And while Adam's been exercising his jaw... 100 00:05:27,000 --> 00:05:29,000 Look at that. 101 00:05:29,000 --> 00:05:31,000 ...Jayne's gone ahead and built one. 102 00:05:31,000 --> 00:05:35,000 Well, there we go. That's our shark jaw muscle. 103 00:05:36,000 --> 00:05:38,000 Gotta work. 104 00:05:38,000 --> 00:05:41,000 Jayne's also gathered an array of batteries, 105 00:05:41,000 --> 00:05:46,000 pistons, and assorted hydraulic hardware to power the spine. 106 00:05:46,000 --> 00:05:51,000 Meanwhile, the steel teeth have arrived in the... mail. 107 00:05:51,000 --> 00:05:53,000 Check that out. 108 00:05:53,000 --> 00:05:56,000 This is beautiful, 8-inch steel. 109 00:05:56,000 --> 00:06:01,000 I've got every size that I need to make my fully mechanical 110 00:06:01,000 --> 00:06:04,000 anatomically correct great white shark jaws. 111 00:06:04,000 --> 00:06:07,000 One thing that's really clear, and I knew this was coming, 112 00:06:07,000 --> 00:06:10,000 is that the shark has a lot of teeth. 113 00:06:10,000 --> 00:06:13,000 We are cutting out something around 90 of them, 114 00:06:13,000 --> 00:06:18,000 and they are all gonna have to be individually sharpened and serrated. 115 00:06:18,000 --> 00:06:21,000 The great white's tooth has serrations along the edge. 116 00:06:21,000 --> 00:06:25,000 In fact, its name, carcara and carcarius, means ragged toothed shark. 117 00:06:25,000 --> 00:06:28,000 All right, I'm gonna say it if no one else is. 118 00:06:28,000 --> 00:06:31,000 Adam, what's with the chain mail? 119 00:06:31,000 --> 00:06:35,000 I'm just wearing the chain mail because I bought it in the mail. 120 00:06:35,000 --> 00:06:38,000 It's actually anodized aluminum, and it feels kind of cool. 121 00:06:40,000 --> 00:06:43,000 Yeah, but not nearly as cool as this. 122 00:06:43,000 --> 00:06:47,000 Oh, my God. We're gonna need a bigger boat. 123 00:06:47,000 --> 00:06:50,000 Shark delivery for Heinemann and Savage. 124 00:06:50,000 --> 00:06:52,000 That's the coolest thing I've ever seen. 125 00:06:52,000 --> 00:06:57,000 Yep, it's a life-sized fiberglass cast of a great white shark. 126 00:06:57,000 --> 00:07:02,000 Dude, I swear it was this big. 127 00:07:02,000 --> 00:07:05,000 17 feet from tip to tail. 128 00:07:05,000 --> 00:07:07,000 It's beautiful. 129 00:07:07,000 --> 00:07:11,000 The original shark would have weighed in at 2,200 pounds. 130 00:07:11,000 --> 00:07:13,000 It don't look like much without its teeth. 131 00:07:13,000 --> 00:07:16,000 Looks like he's ready to gum you to death. 132 00:07:16,000 --> 00:07:19,000 And it's ready to be made into RoboShark. 133 00:07:19,000 --> 00:07:21,000 This is gonna be the best shark we've ever... 134 00:07:21,000 --> 00:07:28,000 Okay, guys, we have three shark myths, and we get to test them out on real-life sharks. 135 00:07:28,000 --> 00:07:30,000 Cool. What are they? 136 00:07:30,000 --> 00:07:32,000 First off, we're gonna see if Flashlight's attract sharks. 137 00:07:32,000 --> 00:07:34,000 Oh, that sounds dangerous. What else? 138 00:07:34,000 --> 00:07:39,000 Then we're going to find out if Playing Dead is a good strategy in shark-infested waters. 139 00:07:39,000 --> 00:07:42,000 Like the sailors on the USS Indianapolis. 140 00:07:42,000 --> 00:07:44,000 And then we're doing one from Jaws. 141 00:07:44,000 --> 00:07:46,000 We're gonna find out if Dog's attract sharks. 142 00:07:46,000 --> 00:07:48,000 Well, with a rundown like that, where are we gonna test everything? 143 00:07:48,000 --> 00:07:53,000 I don't know. How do you guys feel about, say, oh, the Bahamas? 144 00:07:53,000 --> 00:07:56,000 Yeah, Bahamas! Cool! 145 00:07:56,000 --> 00:08:03,000 So it's time for the team to sit back, relax, and try not to get eaten in the shark capital of the world. 146 00:08:03,000 --> 00:08:12,000 With over 40 species in crystal clear water, the Bahamas is the ultimate destination for the Mythbusters shark bites. 147 00:08:12,000 --> 00:08:15,000 We're back at Stewart Cove's. 148 00:08:15,000 --> 00:08:20,000 But it seems that either the sun or the jet lag has got to Tory. 149 00:08:20,000 --> 00:08:23,000 We are going to start at the giant iguana. 150 00:08:23,000 --> 00:08:30,000 And if that doesn't happen, we will go north until we see the two humongous parrots. 151 00:08:30,000 --> 00:08:36,000 Hopefully, they won't eat us. And let's not forget the floating dolphin head. 152 00:08:36,000 --> 00:08:39,000 Everyone wants to see it. I know I do. 153 00:08:39,000 --> 00:08:43,000 Yep, after getting Tory some medication, the real plan is this. 154 00:08:43,000 --> 00:08:45,000 Find a boat, check. 155 00:08:45,000 --> 00:08:47,000 Head out to sea, check. 156 00:08:47,000 --> 00:08:50,000 In Dusa feeding frenzy, check. 157 00:08:50,000 --> 00:08:53,000 And then chum the water with Tory. 158 00:08:53,000 --> 00:08:55,000 Here, let's give him a little bait. 159 00:08:57,000 --> 00:08:58,000 Check. 160 00:08:58,000 --> 00:09:01,000 Get back here, get back here, get back here, get back here. 161 00:09:02,000 --> 00:09:11,000 With everyone back on the boat, the next step is to get a feel for what they're up against with an exploratory safety dive. 162 00:09:11,000 --> 00:09:13,000 Do we really want to go in there? 163 00:09:13,000 --> 00:09:14,000 That's just a little one. 164 00:09:14,000 --> 00:09:19,000 An important step, because Tory and Grant, as divers, are nervous novices. 165 00:09:19,000 --> 00:09:27,000 Needless to say, I never thought I would learn to dive, really, because I'm afraid of the water. 166 00:09:27,000 --> 00:09:30,000 And, B, I don't like fish touching me. 167 00:09:30,000 --> 00:09:35,000 So, really, diving wasn't on my top list of things to do. 168 00:09:35,000 --> 00:09:39,000 Grant hasn't been this scared since he saw Finding Nemo. 169 00:09:39,000 --> 00:09:45,000 But once Mr. Courageous has finally squeezed into his wetsuit, it's just too late to back out now. 170 00:09:45,000 --> 00:09:47,000 This fit a lot better before lunch. 171 00:09:47,000 --> 00:09:52,000 Wearing the latest in shark-resistant chain mail fashion, there's only one thing left to do. 172 00:09:52,000 --> 00:09:54,000 All right, bring on the sharks. 173 00:09:54,000 --> 00:09:56,000 Get wet. 174 00:09:58,000 --> 00:10:05,000 For the experiments to come, it's essential the team acclimatize to being surrounded by lots of sharks. 175 00:10:05,000 --> 00:10:09,000 Here, sharky sharky. Nice sharky. 176 00:10:09,000 --> 00:10:15,000 So once the safety divers see the team in a position on the seabed, they'll introduce the bait box. 177 00:10:15,000 --> 00:10:20,000 So when we first got down there, there were like five or six sharks kind of swimming around. 178 00:10:20,000 --> 00:10:22,000 It was kind of a cool little magical experience. 179 00:10:22,000 --> 00:10:29,000 And then the chum box came down, and it got very, very real very quickly. 180 00:10:29,000 --> 00:10:32,000 Whoa, they're going for it. This is mental. 181 00:10:32,000 --> 00:10:35,000 Grant, they're all over you. 182 00:10:35,000 --> 00:10:38,000 They're touching me, but I'm okay. 183 00:10:38,000 --> 00:10:42,000 The fish box gets open, and they just run into feeding Princey. 184 00:10:42,000 --> 00:10:45,000 They're all eating the fish, and it's psycho. 185 00:10:45,000 --> 00:10:48,000 They are everywhere, and they don't care that you're there. 186 00:10:48,000 --> 00:10:51,000 They're like in an obstacle. They're just knocking on down. 187 00:10:51,000 --> 00:10:55,000 There's like a hundred of them. This is getting incredible. 188 00:10:55,000 --> 00:10:58,000 I can't believe I agreed to this. 189 00:10:58,000 --> 00:11:01,000 Well, I think we definitely came to the right place to test these mits. 190 00:11:10,000 --> 00:11:14,000 We have a great spot, and there are tons of sharks. So what's our first myth? 191 00:11:14,000 --> 00:11:17,000 Our first myth comes from the survivors of the USS Indianapolis. 192 00:11:17,000 --> 00:11:20,000 Oh, now that's a ship that Quinn talks about in Jaws, right? 193 00:11:20,000 --> 00:11:24,000 Exactly. The USS Indianapolis was on a secret mission to deliver a bomb, 194 00:11:24,000 --> 00:11:29,000 but it was so secret that when they got hit by a torpedo, no one knew to come rescue them. 195 00:11:29,000 --> 00:11:33,000 Now, some of the survivors claimed that playing dead is what actually saved their lives 196 00:11:33,000 --> 00:11:37,000 because the sharks ignored them and went for the guys that were thrashing around. 197 00:11:40,000 --> 00:11:49,000 On July the 30th, 1945, the USS Indianapolis was torpedoed by a Japanese sob in the Philippine Sea. 198 00:11:51,000 --> 00:11:57,000 900 crew went into the water alive. Just 317 survived. 199 00:11:58,000 --> 00:12:01,000 Joseph Tronnet was one of the fortunate few. 200 00:12:01,000 --> 00:12:09,000 But was it luck, or did Joe's strategy of playing dead whenever sharks were nearby keep him alive? 201 00:12:09,000 --> 00:12:12,000 Okay, so here's the plan. We jump the heck out of the water. 202 00:12:12,000 --> 00:12:15,000 We attract as many sharks as possible, and then you two jump in. 203 00:12:15,000 --> 00:12:17,000 Well, no, that sounds like a bad idea. 204 00:12:17,000 --> 00:12:18,000 Who thought of that plan? 205 00:12:18,000 --> 00:12:23,000 Carrie, like all masterminds, enjoys pulling the strings from a safe distance. 206 00:12:23,000 --> 00:12:27,000 Okay, you thrash around and you play dead, and we'll see who gets eaten. 207 00:12:27,000 --> 00:12:28,000 I hope they like sushi. 208 00:12:28,000 --> 00:12:30,000 Oh, I hope they like Italian. 209 00:12:31,000 --> 00:12:38,000 Unlike with the unprepared crew of the Indianapolis, to make sure that the sharks don't nibble on a little belaychee... 210 00:12:38,000 --> 00:12:41,000 Open that back up again, because each one of you gets a fish head in your pants. 211 00:12:41,000 --> 00:12:46,000 ...or take a hunk of Imahara, the boys are wearing protection. 212 00:12:46,000 --> 00:12:48,000 They're not going to just chump the water and throw us in. 213 00:12:48,000 --> 00:12:54,000 We're actually wearing chain mail, which is specially designed to resist shark attack. 214 00:12:54,000 --> 00:12:58,000 In addition to that, we'll have two safety divers in the water. 215 00:12:58,000 --> 00:13:00,000 One next to Tori and one next to me. 216 00:13:00,000 --> 00:13:04,000 They'll be ready to jump in if they see us get into trouble. 217 00:13:04,000 --> 00:13:05,000 Fish, fish, fish, fish! 218 00:13:05,000 --> 00:13:09,000 And talking of trouble, it's time to bring out the sharks. 219 00:13:09,000 --> 00:13:10,000 It's a good time! 220 00:13:10,000 --> 00:13:12,000 That's so good! 221 00:13:12,000 --> 00:13:14,000 I have a very important role in this experiment. 222 00:13:14,000 --> 00:13:19,000 I'm going to be chumming the water with lots of delicious fish. 223 00:13:19,000 --> 00:13:21,000 Bringing all the sharks in. 224 00:13:21,000 --> 00:13:28,000 And then I'm going to basically just check their behaviors, see if they're more attracted to thrashing Tori or still grand. 225 00:13:28,000 --> 00:13:30,000 Yeah, Sharky Sharky! 226 00:13:30,000 --> 00:13:38,000 Some scientists think that the increased heart rate and frenetic movements of panicking sailors meant it was them that were picked off. 227 00:13:38,000 --> 00:13:43,000 And if that's true, then Tori's in for a terrifying afternoon. 228 00:13:43,000 --> 00:13:49,000 Do they like me, Tori or grand? Who will be eaten for dinner? 229 00:13:49,000 --> 00:13:56,000 And while Carrie's distributing delicious chum, Tori's more concerned about his bum. 230 00:13:56,000 --> 00:13:59,000 I'm just hoping that I don't aint only secrete anything. 231 00:13:59,000 --> 00:14:05,000 I also heard that urine is a good shark attractor, so I'm hoping I don't pee my wet suit. 232 00:14:05,000 --> 00:14:08,000 Actually Tori, we busted that one. 233 00:14:08,000 --> 00:14:10,000 And there's no response at all. 234 00:14:10,000 --> 00:14:12,000 But I'm not so sure about the twos. 235 00:14:12,000 --> 00:14:15,000 Hot tails and appetizers! 236 00:14:15,000 --> 00:14:19,000 As for Grant, Belly's got his therapist on speed dial. 237 00:14:19,000 --> 00:14:28,000 I have been kind of dreading this one because it combines my phobias of open water and fish touching me at the same time. 238 00:14:28,000 --> 00:14:37,000 I'm not really looking forward to jumping in the water after it's been chummed, which they say kind of makes the sharks a little bit more aggressive. 239 00:14:38,000 --> 00:14:46,000 And with around 20 Caribbean reef sharks in the middle of a full blown feeding frenzy, jumping into the water could be a problem. 240 00:14:46,000 --> 00:14:49,000 There seems to be more shark than water. 241 00:14:49,000 --> 00:14:50,000 You guys ready? 242 00:14:50,000 --> 00:14:51,000 No. 243 00:14:51,000 --> 00:14:55,000 Okay, this is it. It's time to separate the men from the boys. 244 00:14:55,000 --> 00:14:57,000 So wrong! 245 00:14:57,000 --> 00:14:59,000 What the heck are we doing right now? 246 00:14:59,000 --> 00:15:02,000 And hopefully not the limbs from the men. 247 00:15:02,000 --> 00:15:06,000 Oh man, I gotta give you credit. I never do this. 248 00:15:06,000 --> 00:15:07,000 Yeah. 249 00:15:10,000 --> 00:15:17,000 Just when you thought it was safe to go back in the water, it's the Mythbusters Shark Bites Special. 250 00:15:19,000 --> 00:15:21,000 And Jamie and Adam... 251 00:15:21,000 --> 00:15:23,000 Get eye Bruce. Get eye. 252 00:15:23,000 --> 00:15:27,000 ...are tackling the most popular myth in their mailbox. 253 00:15:28,000 --> 00:15:36,000 During the fearful frenzy of an attack, can you actually poke a shark in the eye before it's too late? 254 00:15:38,000 --> 00:15:40,000 We need to replicate a shark attack. 255 00:15:40,000 --> 00:15:47,000 And so rather than getting a big ass shark and convincing it to cooperate with us, we're going to build a mechanical one. 256 00:15:47,000 --> 00:15:49,000 Now it needs to do several things. 257 00:15:49,000 --> 00:15:51,000 It needs to be able to bite like a real shark. 258 00:15:51,000 --> 00:15:54,000 It needs to be able to shake its head like a real shark. 259 00:15:54,000 --> 00:16:00,000 And we also need to be able to put it in the water because the water is an important part of the physics involved. 260 00:16:01,000 --> 00:16:08,000 And to satisfy those criteria, Adam and Jamie are about to bring their fiberglass cast to life. 261 00:16:08,000 --> 00:16:12,000 Our shark is going to have roughly six points of articulation across his body. 262 00:16:12,000 --> 00:16:15,000 It's going to be a big steel beam with a hinge like that. 263 00:16:15,000 --> 00:16:23,000 In order to cut him up and attach him to that steel beam with its points of articulation, we need to carefully mark him at every point he is going to be able to get. 264 00:16:24,000 --> 00:16:28,000 We're going to bend him and open a gap up big enough so the fiberglass can handle it. 265 00:16:28,000 --> 00:16:31,000 And when we put it all back together, it's Robo Shark. 266 00:16:32,000 --> 00:16:38,000 With those gaps cut out and Bruce in sections, the team can get inside to strengthen him with a steel frame. 267 00:16:42,000 --> 00:16:48,000 And it's to this skeleton that the hinged and hydraulically powered spine will attach. 268 00:16:48,000 --> 00:16:54,000 This is my new favorite thing we've ever made. 269 00:16:54,000 --> 00:16:55,000 Ain't done yet. 270 00:16:55,000 --> 00:16:57,000 That's awesome. 271 00:16:57,000 --> 00:17:01,000 Look at all that room in there. We can give it a whole digestive tract. 272 00:17:01,000 --> 00:17:11,000 Ambitious, but while Jamie works on the spine, Adam decides gastroenterology is not for him and focuses on what could be loosely called orthodontics. 273 00:17:11,000 --> 00:17:12,000 Open wide. 274 00:17:12,000 --> 00:17:17,000 He carefully fits the patient with a set of custom made steel goats. 275 00:17:18,000 --> 00:17:23,000 And then 90 serrated and sharpened anatomically correct steel teeth. 276 00:17:25,000 --> 00:17:29,000 It's very important to brush after every meal. 277 00:17:31,000 --> 00:17:34,000 While Adam's been playing dentist Frankenstein, 278 00:17:34,000 --> 00:17:36,000 Behold our shark, 279 00:17:36,000 --> 00:17:41,000 Jamie's welded the steel and hydraulic skeletal system into place. 280 00:17:44,000 --> 00:17:45,000 Oh, great. 281 00:17:45,000 --> 00:17:49,000 And Bruce is almost ready to thrash into life. 282 00:17:49,000 --> 00:17:51,000 I think the structural stuff is pretty well there. 283 00:17:51,000 --> 00:17:54,000 All we have to do from here is mount the head on. 284 00:17:54,000 --> 00:17:58,000 And with said head in place, Adam powers up the jaws. 285 00:17:58,000 --> 00:17:59,000 Check this out. 286 00:18:01,000 --> 00:18:03,000 Giving Bruce his bite. 287 00:18:05,000 --> 00:18:08,000 Next, Adam tackles the all important eye area. 288 00:18:08,000 --> 00:18:10,000 Ocular operation. 289 00:18:10,000 --> 00:18:12,000 By adding emergency stop buttons. 290 00:18:16,000 --> 00:18:18,000 That's how you turn them off. 291 00:18:19,000 --> 00:18:25,000 So a successful hit on the eye will cause Bruce to back off, enabling the victim to escape. 292 00:18:26,000 --> 00:18:28,000 And after Adam adds the final touches, 293 00:18:28,000 --> 00:18:34,000 All mighty Bruce is ready for his myth busting debut. 294 00:18:38,000 --> 00:18:44,000 Sporting a set of anatomically accurate steel teeth with a spare set of rubber dentures. 295 00:18:45,000 --> 00:18:47,000 Dude, it's so perfect. 296 00:18:48,000 --> 00:18:55,000 And hydraulically powered articulated steel skeleton and eyes sensitive to attack by gouging. 297 00:18:55,000 --> 00:18:58,000 It's another myth busters first. 298 00:18:58,000 --> 00:19:01,000 Boys and girls meet Robo Shark. 299 00:19:02,000 --> 00:19:03,000 It's time to go swimming. 300 00:19:03,000 --> 00:19:05,000 It's time for his first meal. 301 00:19:05,000 --> 00:19:06,000 Ha ha ha ha. 302 00:19:13,000 --> 00:19:17,000 Stranded for five long days in shark infested waters, 303 00:19:17,000 --> 00:19:23,000 Joseph Tronnet claimed playing dead kept him alive when so many others perished. 304 00:19:23,000 --> 00:19:28,000 But like a double lottery winner, was Joe simply unbelievably lucky? 305 00:19:28,000 --> 00:19:34,000 Or is his play dead technique really a viable strategy for surviving in shark infested water? 306 00:19:37,000 --> 00:19:42,000 It's putting that to the test that's making Tory and Grant understandably nervous. 307 00:19:43,000 --> 00:19:46,000 Oh, what the heck are we doing right now? 308 00:19:46,000 --> 00:19:51,000 Well Tory, to the untrained eye, it looks like you're playing the part of Sharkbait. 309 00:19:52,000 --> 00:19:55,000 Oh man, I gotta give you credit. I never do this. 310 00:19:55,000 --> 00:19:56,000 Yeah. 311 00:19:56,000 --> 00:19:58,000 This is freaking scary. 312 00:20:03,000 --> 00:20:05,000 This sucks. This sucks so bad. 313 00:20:06,000 --> 00:20:07,000 This sucks a lot. 314 00:20:07,000 --> 00:20:08,000 I don't want to do this. 315 00:20:09,000 --> 00:20:11,000 Why the hell are we doing this? 316 00:20:12,000 --> 00:20:18,000 If they thought stepping out into the middle of a feeding frenzy was tough, it's about to get worse. 317 00:20:18,000 --> 00:20:19,000 Much worse. 318 00:20:19,000 --> 00:20:21,000 Grant plays dead. 319 00:20:21,000 --> 00:20:23,000 You're still going very well. 320 00:20:23,000 --> 00:20:26,000 And Tory plays the part of a panicked seaman. 321 00:20:26,000 --> 00:20:29,000 Come on, Grant. Don't get to dinner. 322 00:20:29,000 --> 00:20:30,000 Come on. 323 00:20:30,000 --> 00:20:38,000 In the longest ten minutes of their lives, they're going to see who attracts more interest from the excited sharks. 324 00:20:38,000 --> 00:20:41,000 Oh, they're going straight for Tory because he's thrashing. 325 00:20:41,000 --> 00:20:42,000 Look at him. 326 00:20:42,000 --> 00:20:45,000 They're definitely more interested to all, wait, no, that one's going to Grant. 327 00:20:45,000 --> 00:20:52,000 From the get-go, the frenzied feeding sharks are curious, but it's not long before a clear pattern emerges. 328 00:20:52,000 --> 00:20:54,000 You over the piece of me. 329 00:20:54,000 --> 00:20:58,000 Grant, our dead man floating, is being left alone. 330 00:20:58,000 --> 00:21:00,000 He's keeping off an enemy. 331 00:21:01,000 --> 00:21:04,000 Whereas Tory is clearly catch of the day. 332 00:21:04,000 --> 00:21:08,000 It's only thanks to the safety divers that he's not actually being bitten. 333 00:21:08,000 --> 00:21:10,000 Oh my God, they're all going straight for you. 334 00:21:10,000 --> 00:21:12,000 Come on, get a dinner. 335 00:21:12,000 --> 00:21:13,000 Woo! 336 00:21:14,000 --> 00:21:15,000 Oh my God. 337 00:21:16,000 --> 00:21:17,000 You dig over towards you. 338 00:21:17,000 --> 00:21:19,000 Thrasher over that way, man. 339 00:21:20,000 --> 00:21:22,000 You talk a lot for a dead guy. 340 00:21:23,000 --> 00:21:27,000 With hysteria and exhaustion peaking, Cary puts the guys out of their misery. 341 00:21:27,000 --> 00:21:29,000 All right guys, I think we proved our point. 342 00:21:29,000 --> 00:21:31,000 Come back in. 343 00:21:31,000 --> 00:21:33,000 And the shark bait can climb aboard. 344 00:21:33,000 --> 00:21:36,000 That was the scariest thing ever. 345 00:21:36,000 --> 00:21:39,000 Most of these kept grabbing my food. 346 00:21:40,000 --> 00:21:43,000 It was like every nightmare I've ever had rolled up into one. 347 00:21:43,000 --> 00:21:46,000 First of all, you're struggling out in the open water. 348 00:21:46,000 --> 00:21:50,000 You've got to lie fast, but it's really hard on the waves to be crashing over. 349 00:21:50,000 --> 00:21:54,000 The hitch in the face, your eyes staying, and everything hurts. 350 00:21:54,000 --> 00:21:56,000 And you're still trying to breathe. 351 00:21:57,000 --> 00:21:59,000 That was really intense. 352 00:22:01,000 --> 00:22:04,000 That is up there with one of the scariest things I've ever done. 353 00:22:04,000 --> 00:22:09,000 I mean, jumping out of planes, trying to get crocodiles to chase you. 354 00:22:11,000 --> 00:22:13,000 Playing in the ring with bulls. 355 00:22:13,000 --> 00:22:14,000 Those are scary things. 356 00:22:14,000 --> 00:22:20,000 But man, just looking out at the water and having just sharks come up and you see their fins 357 00:22:20,000 --> 00:22:24,000 and someone's telling you, go jump in there and thrash around. 358 00:22:24,000 --> 00:22:26,000 That's a scary place to be. 359 00:22:26,000 --> 00:22:30,000 Scary and intense just about sums it up. 360 00:22:30,000 --> 00:22:32,000 But what about the test itself? 361 00:22:32,000 --> 00:22:35,000 I clearly saw the toy with all the thrashing around was getting way more interest. 362 00:22:35,000 --> 00:22:37,000 There were more sharks circling them. 363 00:22:37,000 --> 00:22:39,000 They were a lot closer than the sharks checked out for ant. 364 00:22:39,000 --> 00:22:41,000 It keeps morphing into me. 365 00:22:41,000 --> 00:22:42,000 A lot closer. 366 00:22:43,000 --> 00:22:49,000 A result that backs up the theory that sharks are attracted to panicky erratic movement 367 00:22:49,000 --> 00:22:53,000 because they associate those cues with injured fish. 368 00:22:53,000 --> 00:22:54,000 You know, dinner. 369 00:22:54,000 --> 00:22:56,000 All right, can we confirm this one? 370 00:22:56,000 --> 00:22:59,000 Better to play dead than to thrash around and shark infest the waters. 371 00:22:59,000 --> 00:23:01,000 Well, nothing touched me. 372 00:23:01,000 --> 00:23:05,000 Well, I'm not sure yet because they might have just been attracted to Tori. 373 00:23:05,000 --> 00:23:07,000 He might have been a bigger target. 374 00:23:07,000 --> 00:23:08,000 So what do you say? 375 00:23:08,000 --> 00:23:10,000 I'm thinking to do this properly. 376 00:23:10,000 --> 00:23:15,000 Now you play dead and now you thrash around and we see if the sharks switched to going after you. 377 00:23:15,000 --> 00:23:16,000 And then we'll know for sure. 378 00:23:16,000 --> 00:23:17,000 We're gonna go back in the water. 379 00:23:17,000 --> 00:23:19,000 Oh, damn you and your science. 380 00:23:19,000 --> 00:23:24,000 So it's cue take two, but this time Tori's playing dead. 381 00:23:24,000 --> 00:23:25,000 I died. 382 00:23:25,000 --> 00:23:27,000 I died of a bad disease. 383 00:23:27,000 --> 00:23:28,000 You don't want to eat me. 384 00:23:28,000 --> 00:23:29,000 I got rigmaritous. 385 00:23:29,000 --> 00:23:30,000 I taste terrible. 386 00:23:30,000 --> 00:23:31,000 It's just very tough. 387 00:23:31,000 --> 00:23:35,000 And Grant is playing the part of the Panic Stricton Mariner. 388 00:23:35,000 --> 00:23:36,000 Help! 389 00:23:36,000 --> 00:23:37,000 Help! 390 00:23:37,000 --> 00:23:38,000 Really realistic. 391 00:23:38,000 --> 00:23:40,000 It's almost like you're scared. 392 00:23:40,000 --> 00:23:42,000 Something just touched me. 393 00:23:42,000 --> 00:23:44,000 I think that was a shark. 394 00:23:44,000 --> 00:23:45,000 Right there. 395 00:23:45,000 --> 00:23:46,000 Come on. 396 00:23:46,000 --> 00:23:47,000 That is intense. 397 00:23:47,000 --> 00:23:48,000 Come on. 398 00:23:48,000 --> 00:23:49,000 Yep. 399 00:23:49,000 --> 00:23:53,000 Grant is putting everything he's got into the role of the terrified shipwreck victim. 400 00:23:53,000 --> 00:23:54,000 Look at it. 401 00:23:54,000 --> 00:23:58,000 And Tori thoughtfully provides additional motivation. 402 00:23:58,000 --> 00:23:59,000 He didn't harm. 403 00:23:59,000 --> 00:24:01,000 They're just hungry. 404 00:24:01,000 --> 00:24:03,000 With take twos ten minutes up, 405 00:24:03,000 --> 00:24:06,000 Carrie once again says the magic words. 406 00:24:06,000 --> 00:24:07,000 All right. 407 00:24:07,000 --> 00:24:08,000 Come back in. 408 00:24:08,000 --> 00:24:10,000 I think we might have confirmed this one. 409 00:24:10,000 --> 00:24:11,000 Oh, my God. 410 00:24:11,000 --> 00:24:12,000 That was so exciting. 411 00:24:12,000 --> 00:24:13,000 Talk about an adrenaline rush. 412 00:24:13,000 --> 00:24:18,000 Yeah, but one person's adrenaline rush is another person's living hell. 413 00:24:18,000 --> 00:24:19,000 You might have heard me shout a lot, 414 00:24:19,000 --> 00:24:22,000 but there was one time in particular where something bumped into me. 415 00:24:22,000 --> 00:24:23,000 I think I said something like, 416 00:24:23,000 --> 00:24:25,000 I'm not gonna get in the water. 417 00:24:25,000 --> 00:24:26,000 I'm gonna get in the water. 418 00:24:26,000 --> 00:24:27,000 I'm gonna get in the water. 419 00:24:27,000 --> 00:24:28,000 I'm gonna get in the water. 420 00:24:28,000 --> 00:24:29,000 I'm gonna get in the water. 421 00:24:29,000 --> 00:24:30,000 I'm gonna get in the water. 422 00:24:30,000 --> 00:24:31,000 I think I said something like, 423 00:24:31,000 --> 00:24:32,000 F***! 424 00:24:32,000 --> 00:24:34,000 Nothing just touched me! 425 00:24:34,000 --> 00:24:39,000 And it was kind of like up in my thigh region. 426 00:24:39,000 --> 00:24:40,000 Terrifying. 427 00:24:40,000 --> 00:24:43,000 While Grant and Tori... 428 00:24:43,000 --> 00:24:46,000 Let's do it again! 429 00:24:46,000 --> 00:24:49,000 ...recover in their own unique way, 430 00:24:49,000 --> 00:24:51,000 let's get a conclusion from the testmeister. 431 00:24:51,000 --> 00:24:53,000 When Grant was thrashing around, 432 00:24:53,000 --> 00:24:54,000 F***! 433 00:24:54,000 --> 00:24:55,000 Nothing just touched me! 434 00:24:55,000 --> 00:24:56,000 Same result. 435 00:24:56,000 --> 00:24:59,000 All the sharks came up to him to see what was going on. 436 00:24:59,000 --> 00:25:02,000 Tori, eh, couldn't care less. 437 00:25:02,000 --> 00:25:07,000 Which backs up legendary accounts from the survivors of the USS Indianapolis. 438 00:25:07,000 --> 00:25:12,000 Stranded for five long days in shark-infested water, 439 00:25:12,000 --> 00:25:17,000 the simple act of playing dead kept some of them alive. 440 00:25:17,000 --> 00:25:19,000 That was so much fun. 441 00:25:19,000 --> 00:25:21,000 Fun? You call that fun? 442 00:25:21,000 --> 00:25:23,000 That was one of the scariest things I've ever done in my life. 443 00:25:23,000 --> 00:25:26,000 Well, kudos to both of you for putting your lives on the line for science. 444 00:25:26,000 --> 00:25:28,000 Well, we did get some really good results. 445 00:25:28,000 --> 00:25:31,000 Thrashing around definitely attracts more sharks than playing dead. 446 00:25:31,000 --> 00:25:32,000 And that fits with the science, 447 00:25:32,000 --> 00:25:35,000 because sharks have all sorts of sensitive instrumentation 448 00:25:35,000 --> 00:25:36,000 that helps alert them to food. 449 00:25:36,000 --> 00:25:39,000 All the noise and electrical stimulus from the thrashing around 450 00:25:39,000 --> 00:25:40,000 caused them to be very curious. 451 00:25:40,000 --> 00:25:41,000 So this one's confirmed. 452 00:25:41,000 --> 00:25:44,000 If you're in shark-infested waters, your best bet is to play dead. 453 00:25:44,000 --> 00:25:46,000 I think your best bet is stay on the boat. 454 00:25:46,000 --> 00:25:48,000 Oh, easy for you to say. 455 00:25:48,000 --> 00:25:50,000 I can't believe you made us go in twice. 456 00:25:50,000 --> 00:25:53,000 So you're going myself? What am I, crazy? 457 00:25:59,000 --> 00:26:03,000 Back on board the Mythbusters Shark Bite Special. 458 00:26:03,000 --> 00:26:07,000 Adam and Jamie have given Evolution a helping hand. 459 00:26:07,000 --> 00:26:11,000 They've built Carcaradon Carcarias Robotica. 460 00:26:11,000 --> 00:26:14,000 Time to go swimming. 461 00:26:14,000 --> 00:26:17,000 And later they'll be setting Bruce free. 462 00:26:19,000 --> 00:26:23,000 Feeding him, Adam, and testing weather in the heat of battle, 463 00:26:23,000 --> 00:26:27,000 reaching a shark's eye is even possible. 464 00:26:28,000 --> 00:26:32,000 But first they're taking a sunny sabbatical. 465 00:26:32,000 --> 00:26:36,000 Flying first-class graphics, the boys hit the Bahamas, 466 00:26:36,000 --> 00:26:39,000 where the Gulf Stream Eagle awaits. 467 00:26:39,000 --> 00:26:41,000 You're going to either sleep like a baby 468 00:26:41,000 --> 00:26:43,000 or puke the whole time. 469 00:26:43,000 --> 00:26:45,000 I hope it's the former. 470 00:26:45,000 --> 00:26:48,000 I'm totally excited about going swimming with sharks, 471 00:26:48,000 --> 00:26:50,000 and I'm also a little bit nervous. 472 00:26:50,000 --> 00:26:51,000 It's a gorgeous boat. 473 00:26:51,000 --> 00:26:56,000 I have shown a proclivity to illness on seagoing vessels. 474 00:26:57,000 --> 00:27:00,000 There was the boat we took out to the Feralon Islands 475 00:27:00,000 --> 00:27:02,000 to look for great whites out there. 476 00:27:02,000 --> 00:27:07,000 There was the great white boat we took in South Africa. 477 00:27:07,000 --> 00:27:10,000 Then there's the Whirlpool of Death. 478 00:27:10,000 --> 00:27:12,000 Well, that's great. 479 00:27:14,000 --> 00:27:17,000 So the next few days could either be heaven on earth 480 00:27:17,000 --> 00:27:18,000 or a living hell. 481 00:27:18,000 --> 00:27:20,000 It's a fine line, Adam, 482 00:27:20,000 --> 00:27:24,000 but it's not something salty sea dog Heinemann has to worry about. 483 00:27:24,000 --> 00:27:26,000 We're going to have an adventure. 484 00:27:31,000 --> 00:27:33,000 And the adventure begins 485 00:27:33,000 --> 00:27:37,000 with a two-hour journey across sparkling azure waters. 486 00:27:37,000 --> 00:27:39,000 Their destination? 487 00:27:39,000 --> 00:27:40,000 Tiger Beach. 488 00:27:40,000 --> 00:27:43,000 This is absolutely the best part of this job, 489 00:27:43,000 --> 00:27:45,000 getting to come to a place like this 490 00:27:45,000 --> 00:27:48,000 and swim with freaking sharks. 491 00:27:48,000 --> 00:27:52,000 The name Bahamas comes from the Spanish for shallow seas, 492 00:27:52,000 --> 00:27:55,000 and that's exactly what Tiger Beach is, 493 00:27:55,000 --> 00:27:58,000 a shallow sandy shelf in open water, 494 00:27:58,000 --> 00:28:01,000 open shark-infested water. 495 00:28:01,000 --> 00:28:04,000 This place, within the last two weeks, 496 00:28:04,000 --> 00:28:07,000 had a fatality from a shark attack. 497 00:28:07,000 --> 00:28:08,000 It's serious business. 498 00:28:08,000 --> 00:28:10,000 We need to be careful here. 499 00:28:11,000 --> 00:28:12,000 Looks good. 500 00:28:12,000 --> 00:28:14,000 There's a nice little shark. 501 00:28:14,000 --> 00:28:16,000 I can't quite see which one it is. 502 00:28:16,000 --> 00:28:17,000 That one? 503 00:28:17,000 --> 00:28:19,000 Well, that's a tiger shark. 504 00:28:20,000 --> 00:28:23,000 Named for the dark stripes found on the juveniles, 505 00:28:23,000 --> 00:28:26,000 the tiger shark, with its excellent eyesight 506 00:28:26,000 --> 00:28:30,000 and a cute sense of smell, is a formidable hunter. 507 00:28:30,000 --> 00:28:34,000 Second only to the great white in numbers of attacks on humans, 508 00:28:34,000 --> 00:28:38,000 it's also a shark to be fearfully respected. 509 00:28:38,000 --> 00:28:40,000 Well, let's get suited up. 510 00:28:40,000 --> 00:28:42,000 I can't wait to get down there. 511 00:28:44,000 --> 00:28:46,000 And their first dive down there 512 00:28:46,000 --> 00:28:49,000 is an opportunity to scout the location 513 00:28:49,000 --> 00:28:52,000 and the local sharks for the tests to come. 514 00:28:55,000 --> 00:28:59,000 I'm dumping in these shark-infested waters for science. 515 00:28:59,000 --> 00:29:02,000 But not alone and unprotected, 516 00:29:02,000 --> 00:29:06,000 marine biologist Luke Tipple will be monitoring shark behavior 517 00:29:06,000 --> 00:29:09,000 and watching Adam and Jamie's backs on every dive. 518 00:29:12,000 --> 00:29:14,000 Talk about an adrenaline rush. 519 00:29:14,000 --> 00:29:16,000 We had all the safety stuff figured out 520 00:29:16,000 --> 00:29:18,000 and Luke was super experienced. 521 00:29:22,000 --> 00:29:25,000 See in the size of those sharks and how many there were? 522 00:29:25,000 --> 00:29:29,000 I was just glad that there was a cage for me to get inside of. 523 00:29:36,000 --> 00:29:38,000 Despite their rather friendly name, 524 00:29:38,000 --> 00:29:43,000 lemon sharks come 13th in the list of unprovoked shark attacks on humans. 525 00:29:43,000 --> 00:29:46,000 And this big, they're not to be underestimated. 526 00:29:48,000 --> 00:29:51,000 It was a great dive spot about 30 feet deep, good visibility, 527 00:29:51,000 --> 00:29:55,000 and the ocean technology system was working perfectly well. 528 00:29:55,000 --> 00:29:57,000 And most importantly, there were plenty of sharks. 529 00:29:57,000 --> 00:30:01,000 A few nerve sharks showed up, but it was mostly lemon sharks. 530 00:30:01,000 --> 00:30:03,000 They seem to think we look kind of yummy. 531 00:30:03,000 --> 00:30:05,000 They keep checking us out. 532 00:30:05,000 --> 00:30:10,000 The much feared tiger sharks are staying clear of the action for now. 533 00:30:10,000 --> 00:30:14,000 But one thing's for sure, the guys have come to the right place. 534 00:30:16,000 --> 00:30:18,000 This location could not be better. 535 00:30:18,000 --> 00:30:20,000 The water is teeming with sharks. 536 00:30:20,000 --> 00:30:23,000 It is perfect for our experiments. 537 00:30:23,000 --> 00:30:27,000 With the perfect location, it's time to attract a new myth. 538 00:30:30,000 --> 00:30:32,000 This right here is our next test. 539 00:30:32,000 --> 00:30:34,000 Really? Magnets? 540 00:30:34,000 --> 00:30:37,000 Yeah, could be the next wave in shark repelling technology. 541 00:30:38,000 --> 00:30:41,000 Magnets repelling sharks? How is that supposed to work? 542 00:30:41,000 --> 00:30:45,000 Well, we do know that sharks can sense electromagnetic fields, 543 00:30:45,000 --> 00:30:47,000 so there could be something to it. 544 00:30:47,000 --> 00:30:50,000 The applications would be amazing on surfboards, wetsuits. 545 00:30:50,000 --> 00:30:54,000 You could potentially swim in a whole school of big, fat sharks and be safe as houses. 546 00:30:54,000 --> 00:30:56,000 Hold on there, cowboy. 547 00:30:56,000 --> 00:31:00,000 Just in case it doesn't work, we should try it out on a small shark first. 548 00:31:00,000 --> 00:31:02,000 I totally agree. 549 00:31:04,000 --> 00:31:06,000 Magnets a shark repellent? 550 00:31:08,000 --> 00:31:10,000 Well, it is possible. 551 00:31:10,000 --> 00:31:13,000 A shark snout is jam-packed with sensitive receptor organs 552 00:31:13,000 --> 00:31:16,000 called the ampuli of Lorenzini. 553 00:31:17,000 --> 00:31:22,000 They detect the electromagnetic field that all living organisms emit. 554 00:31:23,000 --> 00:31:28,000 So a strong magnetic field may indeed prevent a shark from getting too nosy. 555 00:31:29,000 --> 00:31:33,000 At Tiger Beach, small-scale sharks are in short supply. 556 00:31:33,000 --> 00:31:39,000 So back ashore, Adam and Jamie revisit the biological field station at Bimini, 557 00:31:39,000 --> 00:31:43,000 where Dr. Samuel Gruber has just what the team need. 558 00:31:45,000 --> 00:31:49,000 Doc is actually going to take a shark, put it into what he calls tonic immobility, 559 00:31:49,000 --> 00:31:51,000 effectively putting it in a trance. 560 00:31:51,000 --> 00:31:54,000 It's a simple matter of turning him over. 561 00:31:54,000 --> 00:31:57,000 And then we're going to introduce a magnet and see what the shark does. 562 00:31:57,000 --> 00:32:02,000 Okay, he's a slain. You can do all kinds of stuff to him and tickle his belly and whatnot. 563 00:32:02,000 --> 00:32:04,000 He's not going to do much. 564 00:32:04,000 --> 00:32:08,000 With the lemon shark pup dozing and confused, the testing can begin. 565 00:32:09,000 --> 00:32:13,000 For the first test, we're just going to do the magnet and see if we get a response. 566 00:32:13,000 --> 00:32:15,000 Okay, here we go. 567 00:32:16,000 --> 00:32:19,000 There he goes. I didn't do that. Now, go ahead and do it again. 568 00:32:21,000 --> 00:32:23,000 See, he's bending away from it. 569 00:32:23,000 --> 00:32:28,000 Not entirely convincing, but with the shark conscious, a reaction to the same action... 570 00:32:29,000 --> 00:32:31,000 Whoa! He almost got away. 571 00:32:31,000 --> 00:32:33,000 ...is more compelling. 572 00:32:33,000 --> 00:32:34,000 Go ahead. 573 00:32:36,000 --> 00:32:40,000 But to make sure, they're going to tweak the experiment using a smaller, 574 00:32:40,000 --> 00:32:45,000 but more powerful neodymium magnet and a young nurse shark. 575 00:32:46,000 --> 00:32:53,000 Now, I'm putting a plastic card over the shark's eye so that we can be sure that he's reacting to the magnetism itself 576 00:32:53,000 --> 00:32:56,000 and not to the sight of the magnet being brought close to him. 577 00:32:56,000 --> 00:32:57,000 Come right in. 578 00:32:58,000 --> 00:32:59,000 Whoa! 579 00:32:59,000 --> 00:33:02,000 He did jump. He totally jumped. He jumped and he bit at it. 580 00:33:02,000 --> 00:33:03,000 That's a result. 581 00:33:03,000 --> 00:33:04,000 That's a result. 582 00:33:04,000 --> 00:33:06,000 But what's that result telling us? 583 00:33:07,000 --> 00:33:09,000 Was the shark pup repelled as per the myth? 584 00:33:10,000 --> 00:33:12,000 Or was it trying to attack the magnet? 585 00:33:13,000 --> 00:33:14,000 One, two, three, go! 586 00:33:14,000 --> 00:33:17,000 Not exactly a useful attribute in shark repelling technology. 587 00:33:19,000 --> 00:33:25,000 To find out, Adam has a plan so cunning, you could put whiskers on it and call it a weasel. 588 00:33:26,000 --> 00:33:32,000 He'll be drawing a magnetic line in the sand and asking this young nurse shark to cross it. 589 00:33:33,000 --> 00:33:37,000 The field that we're testing in is basically a long, rectangular alley of water. 590 00:33:37,000 --> 00:33:42,000 For the control, we expect to see the shark swim up and down this track with no inhibitions. 591 00:33:42,000 --> 00:33:49,000 Then we're going to place a line of magnets somewhere along that track and see if the shark either resists crossing that line of magnets 592 00:33:49,000 --> 00:33:51,000 or doesn't care that they're there at all. 593 00:33:52,000 --> 00:33:54,000 Okay, but what about the... 594 00:33:54,000 --> 00:33:59,000 Because I'm psychic, I can tell what you're going to say when we lay a line of these ceramic magnets out 595 00:33:59,000 --> 00:34:01,000 and watch the shark be resisted by them. 596 00:34:01,000 --> 00:34:07,000 You're going to say, oh, but the shark's just disturbed by seeing a big line of stuff in their tank. 597 00:34:07,000 --> 00:34:08,000 But we've already thought of that. 598 00:34:08,000 --> 00:34:10,000 That's why we're going to start with the control. 599 00:34:10,000 --> 00:34:13,000 We're going to lay a line of these innocuous lead weights across the tank. 600 00:34:13,000 --> 00:34:17,000 And hopefully we'll see the shark not care about these at all from a visual standpoint. 601 00:34:18,000 --> 00:34:19,000 Here he comes. 602 00:34:19,000 --> 00:34:20,000 Yeah? 603 00:34:20,000 --> 00:34:21,000 He totally crossed the line. 604 00:34:21,000 --> 00:34:22,000 That was beautiful. 605 00:34:22,000 --> 00:34:24,000 And it did it in front of all of our cameras. 606 00:34:24,000 --> 00:34:26,000 It's a very cooperative shark. 607 00:34:26,000 --> 00:34:28,000 That is what I call an excellent control. 608 00:34:28,000 --> 00:34:34,000 The line of lead weights going right across the pen did not stop the shark at all. 609 00:34:34,000 --> 00:34:38,000 Now we're going to replace the lead weights with magnets and see if we get a different result. 610 00:34:40,000 --> 00:34:41,000 Yeah, sharky, sharky. 611 00:34:41,000 --> 00:34:42,000 Here he comes. 612 00:34:43,000 --> 00:34:44,000 Come on. 613 00:34:44,000 --> 00:34:45,000 Oh. 614 00:34:45,000 --> 00:34:47,000 It's not quite definitive, is it? 615 00:34:47,000 --> 00:34:51,000 Not on its own, but after several repeat performances. 616 00:34:52,000 --> 00:34:54,000 Multiple times we induce the shark up to the line. 617 00:34:54,000 --> 00:34:57,000 Every single time he stopped about one foot away. 618 00:34:57,000 --> 00:34:59,000 Adam comes to a conclusion. 619 00:34:59,000 --> 00:35:06,000 He sniffed along it, went back the other way, or he would just do a full 180 and turn back the other way, never crossing the line. 620 00:35:06,000 --> 00:35:09,000 It's pretty clear that the magnets are a shark repellent. 621 00:35:09,000 --> 00:35:13,000 But it's a small scale result with small scale sharks. 622 00:35:13,000 --> 00:35:18,000 But what happens when you upsize the sharks and induce a feeding frenzy? 623 00:35:18,000 --> 00:35:20,000 Oh, it's got a hand. 624 00:35:26,000 --> 00:35:35,000 Back in San Francisco, Carrie Grant and Tori are tackling a canine conundrum that's been around since Jaws chowed down on a paddling pooch. 625 00:35:36,000 --> 00:35:44,000 But in the real world, a number of shark attacks have been blamed on swimming dogs. 626 00:35:44,000 --> 00:35:53,000 The theory being their excited, erratic doggy paddle and pungent pooch perfume draw sharks from far and wide. 627 00:35:53,000 --> 00:35:57,000 But is your pet pup really an irresistible shark snack? 628 00:35:57,000 --> 00:36:02,000 Or is it just a case of being in the wrong place at the wrong time? 629 00:36:03,000 --> 00:36:05,000 Alright, so what's the plan? 630 00:36:05,000 --> 00:36:08,000 Well, obviously we're not going to throw a real dog in the water. 631 00:36:08,000 --> 00:36:11,000 Why not? That seems like the easiest way to test this, man. 632 00:36:11,000 --> 00:36:13,000 Don't listen to him, Gertie. 633 00:36:13,000 --> 00:36:16,000 Alright, well since we can't use Gertie, you know what that means. 634 00:36:16,000 --> 00:36:17,000 You want to build a robot? 635 00:36:17,000 --> 00:36:18,000 Yes! 636 00:36:18,000 --> 00:36:22,000 It's going to have to be a pretty realistic robot to fool the finely tuned senses of a shark. 637 00:36:22,000 --> 00:36:25,000 Well, making it smell and sound like a dog should be easy enough. 638 00:36:25,000 --> 00:36:28,000 And I can make it waterproof and give it a realistic swimming motion. 639 00:36:28,000 --> 00:36:30,000 But for that, we're going to need Gertie. 640 00:36:30,000 --> 00:36:32,000 Gertie, do you know how to swim? 641 00:36:34,000 --> 00:36:37,000 It's another world first on Mythbusters. 642 00:36:38,000 --> 00:36:45,000 A barking, urinating, swimming canine robot that all starts with building a dog aquarium? 643 00:36:45,000 --> 00:36:52,000 Grant's going to build a robot dog, but it needs to swim just like a real dog in order to fool the shark into thinking it's a real dog. 644 00:36:52,000 --> 00:36:54,000 So, I have this take set up. 645 00:36:54,000 --> 00:36:57,000 We're going to put Carrie's dog in here, watch her swim. 646 00:36:57,000 --> 00:37:04,000 And that's the way Grant will be able to take a high speed shot and make his robot swim the way a real dog would swim. 647 00:37:04,000 --> 00:37:11,000 Gertie's motivation comes courtesy of a tennis ball and more enthusiasm than a bus full of cheerleaders. 648 00:37:11,000 --> 00:37:13,000 You want the ball? 649 00:37:13,000 --> 00:37:15,000 Oh, look how much you want it. 650 00:37:15,000 --> 00:37:17,000 Torey, stay. 651 00:37:17,000 --> 00:37:20,000 At first, Gertie's rather reluctant to play ball. 652 00:37:22,000 --> 00:37:25,000 But after a stern talking to from Torey... 653 00:37:26,000 --> 00:37:28,000 This is for science. 654 00:37:28,000 --> 00:37:30,000 She takes the plunge. 655 00:37:31,000 --> 00:37:36,000 The team's voices break nearby windows and the cameraman gets the shot. 656 00:37:41,000 --> 00:37:45,000 So, Grant has the shot he needs to mimic a doggy paddling. 657 00:37:45,000 --> 00:37:50,000 A chaotic action that supposedly sounds like injured and distressed prey. 658 00:37:50,000 --> 00:37:54,000 Music to any self-respecting shark's ears. 659 00:37:55,000 --> 00:37:57,000 Now, let's see if Grant can make a robot that goes... 660 00:38:03,000 --> 00:38:08,000 Not many people know this, but Grant was actually raised by robotic dogs. 661 00:38:08,000 --> 00:38:12,000 So, building an air powered robo-dog should be a breeze. 662 00:38:12,000 --> 00:38:20,000 Now, because sharks are very sensitive to electromagnetic fields, I've ruled out electric motors. 663 00:38:20,000 --> 00:38:23,000 So, this is the heart of robo-dog. 664 00:38:23,000 --> 00:38:25,000 This is an air powered motor. 665 00:38:25,000 --> 00:38:28,000 The idea is that the motor turns, which turns these gears, 666 00:38:28,000 --> 00:38:32,000 that will go down to the actual arms and legs of robo-dog. 667 00:38:32,000 --> 00:38:34,000 And that goes a little something like this. 668 00:38:39,000 --> 00:38:41,000 Pretty sexy, huh? 669 00:38:41,000 --> 00:38:45,000 Accurate air powered movement is just part one of this robot. 670 00:38:45,000 --> 00:38:48,000 To make robo-dog as close a simulation as possible, 671 00:38:48,000 --> 00:38:53,000 Carrie and her canines are on the scent trail of part two. 672 00:38:53,000 --> 00:38:56,000 So, oh so real pooch perfume. 673 00:38:56,000 --> 00:39:01,000 So, we're working on this myth that dogs attract sharks. 674 00:39:01,000 --> 00:39:06,000 And we were hoping to take some syringes full of like, you know, dog scent. 675 00:39:06,000 --> 00:39:08,000 And here they have a gland. 676 00:39:08,000 --> 00:39:11,000 Yeah, there's two glands actually on the backside of dogs. 677 00:39:11,000 --> 00:39:13,000 They're called the anal glands. 678 00:39:13,000 --> 00:39:15,000 And it's the reason why dogs sniff each other's butts a lot of times 679 00:39:15,000 --> 00:39:17,000 is because they pick up information. 680 00:39:17,000 --> 00:39:20,000 Where they've been, what they've been doing, who they've been hanging out with, that kind of stuff. 681 00:39:20,000 --> 00:39:24,000 Think of them as a business card that the dog leaves behind when he goes to the bathroom. 682 00:39:24,000 --> 00:39:30,000 But on a routine basis, we can express these guys glands and get the secretions. 683 00:39:30,000 --> 00:39:37,000 And so for that essence of owed a dog, Gertie steps up for her routine procedure. 684 00:39:37,000 --> 00:39:38,000 All right Gertie. 685 00:39:38,000 --> 00:39:44,000 Viewers and dogs of a nervous disposition may want to look away now. 686 00:39:46,000 --> 00:39:50,000 Well, that one wasn't too bad. That one expressed really easily. 687 00:39:50,000 --> 00:39:52,000 Oh, that's awful. 688 00:39:52,000 --> 00:39:53,000 Yeah, yeah. 689 00:39:53,000 --> 00:39:56,000 Oh my God, that smells so bad. 690 00:39:56,000 --> 00:40:01,000 While Gertie recovers from the indignity of having her bum squeezed on TV. 691 00:40:01,000 --> 00:40:04,000 Your anal glands are expressed for science. 692 00:40:07,000 --> 00:40:12,000 Her owner also gets hold of some previously obtained dog blood and dog urine. 693 00:40:12,000 --> 00:40:16,000 Giving her a hot trick of pooch perfume. 694 00:40:16,000 --> 00:40:18,000 Thanks very much for coming in. 695 00:40:18,000 --> 00:40:20,000 You washed that hand, right? 696 00:40:20,000 --> 00:40:21,000 Of course. 697 00:40:21,000 --> 00:40:22,000 Okay. 698 00:40:22,000 --> 00:40:23,000 See you. 699 00:40:23,000 --> 00:40:31,000 And after an understandably hasty exit, Cary gets back to the shop where RoboDog is starting to look the real deal. 700 00:40:31,000 --> 00:40:34,000 RoboDog is all coming together. 701 00:40:34,000 --> 00:40:36,000 We've got paws, we've got legs. 702 00:40:36,000 --> 00:40:40,000 With the head on, it's actually starting to blow like a dog. 703 00:40:40,000 --> 00:40:43,000 And thanks to Gert, it's also going to smell like one. 704 00:40:43,000 --> 00:40:44,000 Right on cue. 705 00:40:44,000 --> 00:40:54,000 So I have a remote system for deploying the syringes whenever we want to put some blood or some urine or some anal secretion in the water to attract the shark. 706 00:40:54,000 --> 00:40:57,000 All we have to do is give it some air. 707 00:41:00,000 --> 00:41:06,000 And after Cary adds a waterproof barking loudspeaker, the team packs him up and sends him to the Bahamas. 708 00:41:07,000 --> 00:41:10,000 Good boy, RoboDog. 709 00:41:10,000 --> 00:41:12,000 I was going to get a treatment to get to the Bahamas. 710 00:41:12,000 --> 00:41:13,000 That's right, fella. 711 00:41:13,000 --> 00:41:15,000 They're going to throw you in with the sharks. 712 00:41:21,000 --> 00:41:27,000 Adam and Jamie are tackling a new shark repelling technology, one with mythical properties. 713 00:41:27,000 --> 00:41:28,000 Oh! 714 00:41:28,000 --> 00:41:31,000 Do magnets really repel sharks? 715 00:41:31,000 --> 00:41:33,000 Wow, that was totally definitive. 716 00:41:34,000 --> 00:41:40,000 So far, they've seen shark pups nervously back off when confronted by a magnetic field. 717 00:41:40,000 --> 00:41:41,000 That was awesome. 718 00:41:41,000 --> 00:41:48,000 Meaning the idea that magnets upset a shark's electromagnetic sensory balance is looking plausible. 719 00:41:51,000 --> 00:41:59,000 And back at Tiger Beach, Adam and Jamie will put that theory to the test by upsizing the magnets and the sharks. 720 00:42:00,000 --> 00:42:04,000 For the final magnet test, we're going to be dealing with full-sized sharks. 721 00:42:04,000 --> 00:42:12,000 And how we're going to do it is we're going to fill these milk crates with fish that we know that normally the sharks are going to go after. 722 00:42:12,000 --> 00:42:16,000 But this time, we're going to cover these bait boxes with magnets. 723 00:42:16,000 --> 00:42:17,000 I've got big ones. 724 00:42:17,000 --> 00:42:18,000 I've got little ones. 725 00:42:18,000 --> 00:42:22,000 This box is going to be literally bristling with magnets. 726 00:42:22,000 --> 00:42:26,000 If the sharks take this, we'll know magnets don't repel sharks. 727 00:42:26,000 --> 00:42:30,000 Okay, but how do we know if the sharks are behaving out of the ordinary? 728 00:42:30,000 --> 00:42:36,000 For our control test, we're going to need to bring some sharks around and watch them behave around a normal chum box. 729 00:42:36,000 --> 00:42:38,000 Oh, yeah. 730 00:42:38,000 --> 00:42:40,000 Oh, I got some on my face. 731 00:42:40,000 --> 00:42:46,000 If you're wondering how this smells, it's just as bad as you think. 732 00:42:46,000 --> 00:42:48,000 I'm going to wrap it up like Christmas. 733 00:42:49,000 --> 00:42:55,000 As for why I'm not seasick out here on the water, the exact conditions I've been seasick with for, 734 00:42:55,000 --> 00:43:00,000 especially when I'm working with fish guts, I have no explanation, but I feel great. 735 00:43:00,000 --> 00:43:02,000 And I'm glad that I feel great. 736 00:43:02,000 --> 00:43:05,000 I'm sorry you don't get to watch me spew chunks. 737 00:43:05,000 --> 00:43:08,000 Oh, Contrere, Monsieur Savage. 738 00:43:09,000 --> 00:43:11,000 Oh, that's great. 739 00:43:12,000 --> 00:43:14,000 I think we're all set. 740 00:43:14,000 --> 00:43:15,000 Got plenty of sharks. 741 00:43:15,000 --> 00:43:16,000 Let's do it. 742 00:43:16,000 --> 00:43:23,000 On this control, Adam will observe from underwater and Jamie will man the comms tops of her. 743 00:43:23,000 --> 00:43:27,000 I'm in position, bring in the control bait box. 744 00:43:27,000 --> 00:43:36,000 Safety diver Luke positions the non-magnetic bait box front and center, and because he knows what's about to happen, gets clear fast. 745 00:43:37,000 --> 00:43:39,000 Adam, have you seen any tigers yet? 746 00:43:39,000 --> 00:43:40,000 Over. 747 00:43:40,000 --> 00:43:41,000 Not at all. 748 00:43:41,000 --> 00:43:46,000 There does seem to be one in the distance circling around, but it's loosely moving, sir. 749 00:43:46,000 --> 00:43:47,000 Over. 750 00:43:47,000 --> 00:43:48,000 Copy that. 751 00:43:48,000 --> 00:43:53,000 Add with the irresistible aroma of fish guts wafting through the water. 752 00:43:54,000 --> 00:43:58,000 You know, I go to the two or three feet away from me, and boy, they look hungry. 753 00:43:58,000 --> 00:44:02,000 It's not long before those lemon sharks come snacking. 754 00:44:02,000 --> 00:44:04,000 Oh, it's got a fish! 755 00:44:04,000 --> 00:44:05,000 Ha ha ha! 756 00:44:05,000 --> 00:44:08,000 Now, slowly away from the entire pond. 757 00:44:08,000 --> 00:44:09,000 Ha ha ha ha! 758 00:44:09,000 --> 00:44:12,000 It's like a schoolyard food fight. 759 00:44:12,000 --> 00:44:15,000 Once it starts, there's no stopping. 760 00:44:15,000 --> 00:44:18,000 Oh, I just got a beautiful hit, Jamie. 761 00:44:18,000 --> 00:44:21,000 Get a terrific hit on the control. 762 00:44:21,000 --> 00:44:22,000 Over. 763 00:44:22,000 --> 00:44:27,000 Okay, Adam, I think it's time to swap the control bait box with the magnetic one. 764 00:44:27,000 --> 00:44:28,000 That's perfect, Jamie. 765 00:44:28,000 --> 00:44:30,000 Let's see how they did with the magnet. 766 00:44:30,000 --> 00:44:31,000 Over. 767 00:44:31,000 --> 00:44:32,000 Okay, so we've done the control. 768 00:44:32,000 --> 00:44:38,000 The sharks had no problem at all attacking the regular unmodified bait box. 769 00:44:38,000 --> 00:44:43,000 Now it's time to swap it out with the magnetic one and see if they behave any differently. 770 00:44:43,000 --> 00:44:49,000 If there's anything to this myth, we should clearly see the sharks being repelled by the magnet. 771 00:44:49,000 --> 00:44:56,000 Unlike the control, this bait box is literally bristling with neodymium or rare earth magnets. 772 00:44:57,000 --> 00:45:04,000 Stronger than the ceramic magnets used on the shark pups, the magnetic field is wider and more powerful. 773 00:45:04,000 --> 00:45:09,000 But will it prevent the sharks from chewing on the exposed chum? 774 00:45:09,000 --> 00:45:13,000 Oh, that's a fine, oh yeah, he's chopping at the bait on the box. 775 00:45:13,000 --> 00:45:19,000 Clearly, right from the moment Luke laid out lunch, there was only one thing on the shark's mind. 776 00:45:19,000 --> 00:45:21,000 Oh, we got another one. 777 00:45:21,000 --> 00:45:22,000 And it wasn't the magnets. 778 00:45:22,000 --> 00:45:32,000 Okay, we've got a CWM which is about five big lemon sharks around it, and they're all kind of taking stabs with their nose and they're all kind of taking nibbles. 779 00:45:32,000 --> 00:45:35,000 And Matt doesn't seem to notice the magnets at all. 780 00:45:36,000 --> 00:45:38,000 This is so cool. 781 00:45:40,000 --> 00:45:42,000 That was a totally unexpected result. 782 00:45:42,000 --> 00:45:50,000 Everything we've seen up to this point is telling us that sharks are reactive to magnetic fields, and we got nothing. 783 00:45:50,000 --> 00:45:55,000 Just to see if I can get the sharks more excited, I'm going to come in serenading in my wetsuit, okay? 784 00:45:55,000 --> 00:45:57,000 Whatever floats your goat, over. 785 00:45:57,000 --> 00:45:59,000 Ah, that feels good. 786 00:46:00,000 --> 00:46:05,000 Relieved that they've got such a clear cut result, Adam heads for the surface. 787 00:46:05,000 --> 00:46:11,000 Personally, I think that the sharks may be sensing the magnets, but they don't care. 788 00:46:11,000 --> 00:46:13,000 They know there's fish in the air. 789 00:46:13,000 --> 00:46:15,000 Dude, that was totally unexpected. 790 00:46:15,000 --> 00:46:20,000 They're going into this feeding frenzy sort of thing, and they're going to go for the fish. 791 00:46:20,000 --> 00:46:21,000 That's it. 792 00:46:21,000 --> 00:46:28,000 Clearly, there's a difference between a single nervous shark popping a pen at a shiver of adult sharks in the wild. 793 00:46:30,000 --> 00:46:38,000 These lemon sharks and their ampulae of Lorenzini just didn't care about the magnetic field surrounding the bait box. 794 00:46:41,000 --> 00:46:43,000 Magnets. How are we going to call this one? 795 00:46:43,000 --> 00:46:54,000 Well, it's a funny one because I thought it was going to be totally confirmed when our small-scale test on Bimini showed the nurse sharks being clearly repelled by the line of ceramic magnets. 796 00:46:54,000 --> 00:46:59,000 Yeah, but the full-sized lemon sharks, when they're hungry, not so much. 797 00:46:59,000 --> 00:47:05,000 Yeah, if something's going to be a shark repellent, it's got to work across a bunch of species, and we haven't seen that. 798 00:47:05,000 --> 00:47:07,000 I think we've got to call this one Busted. 799 00:47:07,000 --> 00:47:08,000 Busted. 800 00:47:24,000 --> 00:47:29,000 It's time to turn down the lights and turn up the fear factor to 11. 801 00:47:34,000 --> 00:47:38,000 The next myth is straight off the fan site, and this one is illuminating. 802 00:47:38,000 --> 00:47:40,000 What is it? 803 00:47:40,000 --> 00:47:42,000 Sharks are attracted to flashlights. 804 00:47:42,000 --> 00:47:43,000 What? 805 00:47:43,000 --> 00:47:52,000 Yeah, I know. It sounds bizarre, but according to some scuba diving fans, when you're diving at night, your underwater flashlight can actually attract sharks. 806 00:47:52,000 --> 00:47:56,000 Night dives with sharks. This is going to be scary. 807 00:47:58,000 --> 00:48:06,000 If you want to see where you're going on a night dive, a flashlight is a scuba diver's best friend, unless it attracts sharks. 808 00:48:08,000 --> 00:48:14,000 The theory suggests that sharks can mistake the electromagnetic field of the flashlight for fish food. 809 00:48:15,000 --> 00:48:22,000 Coupled with the fact that most sharks hunt at night, and all sharks are intensely curious, you've got yourself a myth. 810 00:48:24,000 --> 00:48:25,000 So sharks hunt at night. 811 00:48:25,000 --> 00:48:26,000 Yep. 812 00:48:26,000 --> 00:48:27,000 And we have to do this. 813 00:48:27,000 --> 00:48:28,000 Yep. 814 00:48:28,000 --> 00:48:29,000 Alright, so what's the plan? 815 00:48:29,000 --> 00:48:31,000 Well, I figure we do two dives. 816 00:48:31,000 --> 00:48:35,000 First dive, we go down at night without flashlights, count how many sharks show up. 817 00:48:35,000 --> 00:48:43,000 Then 24 hours later, at the exact same dive site, at the exact same time, we go down there with flashlights and see if more sharks appear. 818 00:48:43,000 --> 00:48:46,000 Okay, but how are we and the viewers going to be able to see anything? 819 00:48:46,000 --> 00:48:50,000 Well, why don't we use some really low-level lights, that way the cameras can pick something up? 820 00:48:50,000 --> 00:48:54,000 But as far as we're concerned and the sharks are concerned, it's still pretty much dark. 821 00:48:54,000 --> 00:48:55,000 Perfect. 822 00:48:55,000 --> 00:49:01,000 Alright, just want to go on record saying I think this is a really, really, really bad idea. 823 00:49:01,000 --> 00:49:02,000 Really? 824 00:49:02,000 --> 00:49:03,000 Really. 825 00:49:04,000 --> 00:49:07,000 The dive site in question is an old sunken wreck. 826 00:49:07,000 --> 00:49:14,000 And thanks to some subtle lighting, we'll be able to see Kari, Tori and Grant as they count sharks. 827 00:49:14,000 --> 00:49:17,000 With and without flashlights. 828 00:49:17,000 --> 00:49:22,000 And it's safe to say no one is looking forward to this test. 829 00:49:22,000 --> 00:49:23,000 Let's review. 830 00:49:23,000 --> 00:49:25,000 I don't really like the water. 831 00:49:25,000 --> 00:49:27,000 I don't like fish touching me. 832 00:49:27,000 --> 00:49:31,000 And apparently now, I don't like any of this happening in the dark. 833 00:49:31,000 --> 00:49:34,000 Not really looking forward to this. 834 00:49:35,000 --> 00:49:41,000 Normally when danger calls, it's Tori who answers. 835 00:49:44,000 --> 00:49:51,000 But now in near darkness, the Mythbusters man of steel is having unsupermanlike thoughts. 836 00:49:51,000 --> 00:49:53,000 Oh, f***. 837 00:49:53,000 --> 00:49:56,000 That was a shark attacking the buoy, okay? 838 00:49:56,000 --> 00:49:57,000 And we want to go in this water. 839 00:49:57,000 --> 00:49:59,000 Is this a good idea? 840 00:49:59,000 --> 00:50:01,000 The buoy didn't do anything. 841 00:50:01,000 --> 00:50:03,000 What is it going to do to us? 842 00:50:03,000 --> 00:50:05,000 Was that cool? Do they usually attack buoys? 843 00:50:05,000 --> 00:50:10,000 While Tori tries to control his heart rate, the team get ready for the control. 844 00:50:10,000 --> 00:50:12,000 The no-flashlight test. 845 00:50:12,000 --> 00:50:13,000 Okay guys, good luck. 846 00:50:13,000 --> 00:50:15,000 See you back on the surface. 847 00:50:15,000 --> 00:50:16,000 Try not to get eaten. 848 00:50:16,000 --> 00:50:17,000 Happy counting. 849 00:50:27,000 --> 00:50:28,000 Oh my god. 850 00:50:28,000 --> 00:50:30,000 This is scary. 851 00:50:30,000 --> 00:50:34,000 I know that there are sharks around, but I just can't see anything. 852 00:50:34,000 --> 00:50:37,000 I'm not liking this. 853 00:50:38,000 --> 00:50:44,000 Trying not to get eaten before the test starts, the guys carefully make their way to the wreck. 854 00:50:45,000 --> 00:50:52,000 So that viewers can see, our camera team has carefully lit this wreck to simulate moonlight. 855 00:50:52,000 --> 00:50:57,000 It's a very low level that's boosted by the cameras. 856 00:50:57,000 --> 00:51:03,000 And this lighting will be exactly the same for the control and the flashlight test. 857 00:51:05,000 --> 00:51:08,000 Is everyone in position? Over. 858 00:51:08,000 --> 00:51:10,000 I'm in position. 859 00:51:10,000 --> 00:51:13,000 It's a little scary down here. 860 00:51:16,000 --> 00:51:19,000 This is Grant. I'm in position. Over. 861 00:51:19,000 --> 00:51:24,000 Okay, 20 minutes. Start counting your sharks now. 862 00:51:25,000 --> 00:51:32,000 Remember, no bait has been added to the water for this baseline test, and neither will it be for test two. 863 00:51:33,000 --> 00:51:35,000 Oh, we got a sea turtle. 864 00:51:36,000 --> 00:51:43,000 It's a slow start, but as their eyes get accustomed to the dark, they realize that they're not alone. 865 00:51:43,000 --> 00:51:47,000 I got one shark. One shark. Over. 866 00:51:47,000 --> 00:51:52,000 Shark one arrives to terrorize Grant, but Tori's gone two better. 867 00:51:53,000 --> 00:52:00,000 Oh, Grant. I got three sharks surrounding me right now. This is a little scary. 868 00:52:01,000 --> 00:52:07,000 Meanwhile, on the poop deck, Carrie, petrified as she is, remains shark-free. 869 00:52:08,000 --> 00:52:14,000 Hey guys, we still have ten minutes to go. This is going to be the creepiest thing I've ever done, and I still haven't seen any sharks. 870 00:52:15,000 --> 00:52:21,000 Not seeing sharks in the dark may be scary, but seeing them is far, far worse. 871 00:52:21,000 --> 00:52:28,000 I got one on my left. One on my left. Whoa, there's a water poop. Holy crap. 872 00:52:29,000 --> 00:52:38,000 Whoa. We can do this right up to our stages. Over. 873 00:52:38,000 --> 00:52:46,000 I just want to say to whatever fans pushing us on the fans side, I hate you. I hate you. I hate you. 874 00:52:46,000 --> 00:52:56,000 It's something about not knowing where the danger lurks as the sharks mysteriously appear out of the gloom, cruise by, and then sonnantly disappear. 875 00:52:57,000 --> 00:53:02,000 I really, really like to get out now because these sharks are pulling me off. 876 00:53:03,000 --> 00:53:10,000 Luckily, before Tori gets toothed, he gets his wish. The twenty minutes are up and our trepid trio get out in a hurry. 877 00:53:11,000 --> 00:53:17,000 Oh my god, that was freaking nuts. It was so dark you can hardly see anything. 878 00:53:18,000 --> 00:53:21,000 Every once in a while you'd see a shark come into the light and then they'd go back out. 879 00:53:22,000 --> 00:53:26,000 The worst part is that you know they're out there but you can't see them. But then all of a sudden three or four started circling me. 880 00:53:27,000 --> 00:53:35,000 Then for some reason they started poking their heads in at us and they were just like, at one point the camera guy had to knock a shark away. 881 00:53:35,000 --> 00:53:37,000 That was terrifying. 882 00:53:38,000 --> 00:53:47,000 Terrifying but still tallyed up. With no flashlights there were four sharks around Tori, two around Grant, and all Carrie Gott was a turtle. 883 00:53:48,000 --> 00:53:51,000 I'm scared to do this again tomorrow but I'm also really, really excited. 884 00:53:51,000 --> 00:54:09,000 What's efficient? King of his domain and over four hundred million years old. No, not Jamie. It is of course sharks. 885 00:54:10,000 --> 00:54:20,000 From nine inches to thirty-nine feet this ancient fish with the cartilaginous skeleton has conquered all of the world's oceans. 886 00:54:21,000 --> 00:54:28,000 It's been closely studied, revered, and at a reflection of our own instincts, feared. 887 00:54:29,000 --> 00:54:34,000 And it's that fear that drives the thriving shark protection and repellent industry. 888 00:54:34,000 --> 00:54:43,000 But Adam thinks he's seen an opening. He's got his own version of shark armor he wants to test. 889 00:54:44,000 --> 00:54:47,000 I am ready. 890 00:54:48,000 --> 00:54:53,000 Move over night rider. Here comes the night diver. 891 00:54:57,000 --> 00:55:00,000 I swear I think I just saw that shark's snatching his lips. 892 00:55:00,000 --> 00:55:02,000 Copy that. 893 00:55:03,000 --> 00:55:10,000 On the show we have a lot of what the f*** are we doing moments but this has to rank easily in the top three of those. 894 00:55:11,000 --> 00:55:17,000 As shark protection goes though it worked. I felt safe as houses and you never know. Maybe it'll catch on. 895 00:55:18,000 --> 00:55:23,000 Meanwhile back in the 21st century things are about to get hot and spicy. 896 00:55:23,000 --> 00:55:30,000 Since we're dealing with shark repellents I remember reading about these Indians that were using chilies as shark repellents. 897 00:55:31,000 --> 00:55:42,000 Chilies? That's great. Look why don't we talk to the cook in our kitchen and find out if they've got some hot chilies and see if we can actually test this. 898 00:55:42,000 --> 00:55:51,000 Yep in order to protect themselves and their boats the Kuna Indians used a shark shield of the hottest habaneros they could find. 899 00:55:52,000 --> 00:55:58,000 But did their path of pepper really keep the sharks away or did it merely add a little bite to the bite? 900 00:56:00,000 --> 00:56:08,000 Here you go Adam. Habanero chilies all bag full of them. They have about 100,000 to 350,000 Scoville units. 901 00:56:08,000 --> 00:56:11,000 Which means they're really really hot. Alright. 902 00:56:12,000 --> 00:56:19,000 Now if you've been paying attention up at the back there you'll remember that Carrie, Grant and Tori have already covered the Scoville scale. 903 00:56:20,000 --> 00:56:22,000 Go ahead make my chili. 904 00:56:23,000 --> 00:56:27,000 The bigger the number the more of the active ingredient capsaicin is in the chili. 905 00:56:27,000 --> 00:56:39,000 Used in pepper sprays its potency is the basis for this myth. If it has the same effect on a shark's taste buds as ours then the myth would be confirmed. 906 00:56:40,000 --> 00:56:48,000 And at around 300,000 on the Scoville scale these puppies are way too hot to handle without extreme care. 907 00:56:49,000 --> 00:56:50,000 What's going to be hotter than chili juice? 908 00:56:51,000 --> 00:56:55,000 But after a dare from the crew Jamie can't resist a taste. 909 00:56:58,000 --> 00:57:15,000 That was just a drop. It was slowly going everywhere inside my mouth just burning like a fire. Love it. 910 00:57:16,000 --> 00:57:19,000 While Jamie blows off some steams. 911 00:57:20,000 --> 00:57:21,000 I need some guacamole. 912 00:57:21,000 --> 00:57:26,000 Monsieur Sauvage finishes prepping his pepper dish. Now to plate him up. 913 00:57:27,000 --> 00:57:36,000 My sister Jamie will help me squeeze them into the balloons and this is how we will serve the pepper orders to the sharks. 914 00:57:37,000 --> 00:57:43,000 Rest assured these balloons are biodegradable and were carefully selected to avoid harming the sharks. 915 00:57:44,000 --> 00:57:46,000 And they're not dissolving from the heat yet? 916 00:57:47,000 --> 00:57:48,000 No. 917 00:57:48,000 --> 00:57:50,000 Both of them out the guys carefully add some water. 918 00:57:51,000 --> 00:57:54,000 We brought chemical warfare to the water balloon man. 919 00:57:55,000 --> 00:58:02,000 Alright well our hot tamale balloons are ready and the methodology we're going to use to introduce them to the sharks actually exploits behavior we've already seen of the sharks around the bait box. 920 00:58:03,000 --> 00:58:10,000 Which is that they curiously swim by them a lot. Especially if we have to when we shake them up and get the water dense with fish material. 921 00:58:10,000 --> 00:58:19,000 We're going to have one of these on top of the bait box and as a shark swims by we're going to pop the balloon so he swims through the cloud of chili infused water. 922 00:58:20,000 --> 00:58:26,000 And to burst the weapons of taste bud destruction Adam adds an idronically powered needle to the bait box. 923 00:58:28,000 --> 00:58:32,000 That's just dindrous fun. I like it. 924 00:58:32,000 --> 00:58:33,000 Perfect. 925 00:58:34,000 --> 00:58:40,000 If I had to hazard a guess as to whether or not the sharks would be repelled by the chilies I think that they would find it in irritant. 926 00:58:41,000 --> 00:58:47,000 I mean the capsaicin in those habaneros is so strong that I got a little bit of it on my arm and it actually burned me. 927 00:58:48,000 --> 00:58:50,000 And it's the same stuff they use in pepper spray. 928 00:58:51,000 --> 00:58:58,000 I can only imagine that a shark with all of its sensitive instrumentation on his snout swimming through a cloud of that would find it unpleasant. 929 00:58:58,000 --> 00:59:04,000 First up on the menu is the all important control. A balloon with no chili just water. 930 00:59:05,000 --> 00:59:12,000 For this myth to be true we should see a clear difference between the control balloon and the balloon full of chili. 931 00:59:13,000 --> 00:59:17,000 The sharks should physically demonstrate a real aversion to the chili. 932 00:59:18,000 --> 00:59:21,000 I'm going to pop this as soon as the sharks are close enough. 933 00:59:21,000 --> 00:59:28,000 I totally fit the balloon. The shark just ate the balloon. 934 00:59:29,000 --> 00:59:31,000 A shark just ate the control balloon? 935 00:59:32,000 --> 00:59:36,000 It sounds like they're not at all afraid of the balloon which is the purpose of the control. 936 00:59:37,000 --> 00:59:40,000 You're right. Let's move on to the chilies. 937 00:59:41,000 --> 00:59:48,000 Safety diver Luke once again does the honors. This time attaching one of the chili balloons to the bait box. 938 00:59:48,000 --> 00:59:55,000 Oh he's bitten the chili bag. Other sharks are coming in to check out what's going on. 939 00:59:56,000 --> 01:00:00,000 And the third one. The first one came back for another bite of the bag. 940 01:00:02,000 --> 01:00:06,000 Clearly the sharks don't seem too hot and bothered by hot spices. 941 01:00:07,000 --> 01:00:11,000 But to make sure Adam and Luke line up a second water filled control. 942 01:00:13,000 --> 01:00:17,000 Here comes another vat of points biting on the balloon. He's bitten the balloon. 943 01:00:18,000 --> 01:00:21,000 Indigestion inducing chili concoction. 944 01:00:23,000 --> 01:00:28,000 He's bitten the chili balloon. Now the sharks are swimming through the chili debris. 945 01:00:30,000 --> 01:00:33,000 Are the sharks twitching or gnashing their teeth? 946 01:00:34,000 --> 01:00:37,000 They don't really show any obvious potential. 947 01:00:38,000 --> 01:00:41,000 Yep there's just no observable difference between the control. 948 01:00:42,000 --> 01:00:44,000 Can I mention that this is really fun. 949 01:00:44,000 --> 01:00:49,000 And the chili. And several more repeat sets reinforce that conclusion. 950 01:00:50,000 --> 01:00:55,000 One of those balloons is probably enough to kill one of us. They don't seem to mind at all. 951 01:00:56,000 --> 01:01:01,000 Couple that. After eight balloons the sharks show no reticence to bite the balloons. 952 01:01:02,000 --> 01:01:04,000 Whether full of water or chili. 953 01:01:05,000 --> 01:01:08,000 Are the little fish around there eating all the bits of chili? 954 01:01:09,000 --> 01:01:12,000 Affirmative. I think we should catch some of the little fish. 955 01:01:12,000 --> 01:01:14,000 They'll be pre-marinated. 956 01:01:17,000 --> 01:01:22,000 Obviously capsaicin doesn't affect the local fish. Little or large. 957 01:01:23,000 --> 01:01:29,000 And it's all down to evolution. The theory being chilies evolved their spice to deter herbivorous mammals. 958 01:01:30,000 --> 01:01:34,000 Birds are not affected by the spice and neither it seems are sharks. 959 01:01:35,000 --> 01:01:37,000 And with all of Adam's chili bubbles burst. 960 01:01:38,000 --> 01:01:39,000 How much fun was that? 961 01:01:39,000 --> 01:01:41,000 He surfaces for the debriefing. 962 01:01:42,000 --> 01:01:43,000 So what do you think? 963 01:01:44,000 --> 01:01:47,000 I think in the end what we got was pretty scientific. 964 01:01:48,000 --> 01:01:55,000 There was really no difference overall between the reaction to the chili balloons and the reaction to the control balloons. Wouldn't you say? 965 01:01:56,000 --> 01:02:01,000 Yeah not much at all. You know with the number of tests that we ran and watching them have the same reaction every single time. 966 01:02:02,000 --> 01:02:06,000 I don't think that we could significantly say that they are deterred by chilies whatsoever. 967 01:02:06,000 --> 01:02:11,000 So I'd say chili as a shark deterrent. Busted. Busted. Busted. 968 01:02:19,000 --> 01:02:25,000 In the Bahamas the team has a new furry friend. Robo-dog. He's not toilet trained. 969 01:02:27,000 --> 01:02:28,000 Oh Robo-dog! 970 01:02:29,000 --> 01:02:34,000 He's embarrassingly bad at Frisbee but he's perfect to test the shaggy dog story. 971 01:02:34,000 --> 01:02:36,000 I didn't train him to do that. 972 01:02:37,000 --> 01:02:43,000 That sharks find canine cuisine irresistible. And that's because Robo-dog has the smell. 973 01:02:44,000 --> 01:02:46,000 Oh my god that smells so bad. 974 01:02:47,000 --> 01:02:49,000 Look and swimming action of a real dog. 975 01:02:51,000 --> 01:02:56,000 How great is this? We're in the Bahamas. It's beautiful and we're about to test whether or not a dog will attract sharks. 976 01:02:56,000 --> 01:03:03,000 Now that might sound like a cruel experiment but luckily Kerry and Grant have made a realistic looking smelling and acting dog. 977 01:03:04,000 --> 01:03:07,000 So we'll be able to test this without putting any dogs in harm's way. 978 01:03:08,000 --> 01:03:15,000 That's right. Despite his shaggy dog exterior old Sharkbait here is actually the most elaborate robot the team has ever built. 979 01:03:16,000 --> 01:03:17,000 And he needs to be. 980 01:03:19,000 --> 01:03:25,000 Shark Senses thanks to 400 million years of evolution are home to the max. 981 01:03:26,000 --> 01:03:32,000 But Robo-dog's got this covered with his realistic smell, bark and air powered movement. 982 01:03:33,000 --> 01:03:35,000 He's the ultimate robot in disguise. 983 01:03:38,000 --> 01:03:42,000 So we're going to start our whole dogs attracting sharks experiment with control. 984 01:03:43,000 --> 01:03:47,000 And the idea is simply count how many sharks naturally show up in this area. 985 01:03:48,000 --> 01:03:55,000 That way we'll have a baseline number that we can compare to later when we actually put the thrashing dog out into the water. 986 01:03:56,000 --> 01:04:00,000 If more sharks show up when we have the dog in the water then there is some truth to this myth. 987 01:04:01,000 --> 01:04:04,000 For this control Tori will be underwater counting sharks. 988 01:04:05,000 --> 01:04:10,000 At up top Kerry will verify the count plus keep an eye on the test time of 20 minutes. 989 01:04:14,000 --> 01:04:17,000 Okay let's begin the experiment. Start counting now. 990 01:04:18,000 --> 01:04:25,000 Wow this is incredible. Even with no chub, nothing in the water. There's already 10 sharks just hanging around here. 991 01:04:26,000 --> 01:04:28,000 I hope it's not me they're attracted to. 992 01:04:29,000 --> 01:04:32,000 Rest assured Tori it's not you, it's the mothership. 993 01:04:33,000 --> 01:04:37,000 In this area in the Bahamas there are a lot of dive boats that come to check out the sharks. 994 01:04:38,000 --> 01:04:40,000 So the sharks are conditioned to know if a boat shows up they might get fed. 995 01:04:41,000 --> 01:04:46,000 So this was a really important test to take a baseline and find out how many sharks are just going to show up from the presence of a boat. 996 01:04:47,000 --> 01:04:53,000 And that magic number is 15. 15 sharks that luckily don't seem to like Italian food. 997 01:04:53,000 --> 01:04:56,000 Everyone did a while they come and check me out just to see if I'm edible. 998 01:04:57,000 --> 01:05:04,000 Next step is to come back tomorrow to this exact same location and be ready to go with the dog immediately when we get here. 999 01:05:05,000 --> 01:05:13,000 And then we'll see if more sharks arrive once we release all our dog fluids whether they get more aggressive and go after them. 1000 01:05:15,000 --> 01:05:20,000 And tomorrow comes all too soon for RoboDog who's about to get ripe. 1001 01:05:20,000 --> 01:05:25,000 There's one final funky preparation I have for RoboDog. 1002 01:05:26,000 --> 01:05:28,000 I have got to fill his syringes with his smells. 1003 01:05:29,000 --> 01:05:31,000 Urine, blood and anal secretion. 1004 01:05:32,000 --> 01:05:34,000 Maybe a little flavor in the water is going to attract the sharks. 1005 01:05:35,000 --> 01:05:37,000 It looks just like chocolate syrup. 1006 01:05:38,000 --> 01:05:43,000 Grant's done the team proud with this bill but with the test looming he's having second thoughts. 1007 01:05:44,000 --> 01:05:57,000 You know we've put a lot of effort and love and personal spirit into RoboDog and getting to this point I don't really want to see RoboDog get chomped on by a shark. 1008 01:05:58,000 --> 01:06:03,000 But you know you just have to let go and let him do what he was designed to do. 1009 01:06:04,000 --> 01:06:11,000 Back at the same location as yesterday the only difference from the control test will be the dog. 1010 01:06:12,000 --> 01:06:16,000 And Tori will brave the water to see what difference that difference makes. 1011 01:06:18,000 --> 01:06:20,000 When we did the control I counted 15 sharks. 1012 01:06:21,000 --> 01:06:26,000 Now in order to confirm the Smith we're going to have to see a lot more sharks and they're going to have to be interested in the dog. 1013 01:06:27,000 --> 01:06:32,000 Whether or not they're going to attack the dog I don't know but they're going to have to go up to it check it out and then we'll be able to tell whether or not this is going to work. 1014 01:06:33,000 --> 01:06:37,000 Following Tori into the shark infested waters is RoboDog. 1015 01:06:38,000 --> 01:06:44,000 And from his first excited doggy paddles it's clear he's doing exactly what he was designed to do. 1016 01:06:45,000 --> 01:06:53,000 RoboDog looks great. He's totally swimming like a real dog. From here it looks like the real deal. I can even hear him barking too. 1017 01:06:54,000 --> 01:06:58,000 With the 20 minute test underway Tori starts counting sharks. 1018 01:06:58,000 --> 01:07:06,000 Okay guys five minutes of gun by and RoboDog is being ignored. There are a few sharks swimming around but no more than the control. 1019 01:07:07,000 --> 01:07:15,000 Yep the visual cue of the dog's shape and the audible cue of the erratic paddling action don't warrant any investigations. 1020 01:07:16,000 --> 01:07:20,000 Which means to a shark dogs don't look or sound like dinner. 1021 01:07:21,000 --> 01:07:28,000 So it's time to let loose the juice. First into the water are the urine and anal secretions. 1022 01:07:29,000 --> 01:07:32,000 Okay Tori stand by we're going to release the urine and anal secretion. 1023 01:07:33,000 --> 01:07:34,000 Come on sharks. 1024 01:07:35,000 --> 01:07:43,000 By adding scent to the vision and sound RoboDog is now the complete package but he's still enjoying his swim unmolested by the sharks below. 1025 01:07:44,000 --> 01:07:52,000 I've seen ten sharks so far and there's no significant change in behavior. Definitely no close encounters or investigations of RoboDog. 1026 01:07:53,000 --> 01:07:57,000 No no no RoboDog you can't get back on the boat. I don't care how many sharks are down there. 1027 01:07:58,000 --> 01:08:02,000 Which leads the final potential scent cue. Blood. 1028 01:08:03,000 --> 01:08:10,000 Okay there are two ways that a dog can release blood. First obviously it can be bleeding. But second if it had fleas it could have flea dirt. 1029 01:08:10,000 --> 01:08:15,000 Which basically is a remnant of blood. So blood in the water with a dog is a very real possibility. 1030 01:08:16,000 --> 01:08:23,000 And it's this trace of blood similar to the amount a flea bitten dog would be carrying that causes a stir. 1031 01:08:24,000 --> 01:08:26,000 See a shark coming towards the surface. 1032 01:08:27,000 --> 01:08:32,000 There's two sharks. Three sharks they're starting to come to the surface. 1033 01:08:33,000 --> 01:08:42,000 After the blood went into the water another five sharks appeared pretty quickly. But the count is still only reached 15. The same is the control. 1034 01:08:43,000 --> 01:08:48,000 Before Tori can add any of his own anal secretions the twenty minutes are up. 1035 01:08:49,000 --> 01:08:52,000 Wow that was nuts. How many sharks did you see? 1036 01:08:53,000 --> 01:08:57,000 There was 15 sharks so this is exactly like our control test. So their behavior didn't change. 1037 01:08:57,000 --> 01:08:59,000 They didn't even like go up to the dog. They just ignored it. 1038 01:09:00,000 --> 01:09:04,000 Well obviously we couldn't have put a real dog in the water. So I think this is the best possible experiment we could do. 1039 01:09:05,000 --> 01:09:10,000 Robo dog looks like a dog, swims like a dog, smells like a dog. From this I think we can call it. 1040 01:09:11,000 --> 01:09:12,000 Yeah man I think we'd have to call that busted. 1041 01:09:13,000 --> 01:09:17,000 Alright this one's busted. Who's a good boy? Who's a good boy? Who's a good boy? 1042 01:09:28,000 --> 01:09:33,000 So any flight of fancy you want to indulge this shark week? 1043 01:09:34,000 --> 01:09:36,000 I want to test flapping fish whether they attract sharks. 1044 01:09:37,000 --> 01:09:42,000 Yeah but we did that in South Africa. We played the 40 hertz yummy hum and no sharks came around. We're done with that one. 1045 01:09:43,000 --> 01:09:50,000 Yeah well I know but you know it was too complicated. There were computers and speakers and I didn't see any flapping fish in that test. 1046 01:09:51,000 --> 01:09:55,000 So that's what I want to do. I want to try something like a flapping fish and see whether it attracts sharks. 1047 01:09:55,000 --> 01:09:58,000 An actual fish that flaps. Back to basics. I love it. 1048 01:09:59,000 --> 01:10:05,000 Sharks are attuned with all six of their senses to anything that may be a potential dining experience. 1049 01:10:06,000 --> 01:10:12,000 But some scientists reckon it's their vibration detecting lateral lines that are the most crucial. 1050 01:10:13,000 --> 01:10:18,000 They can supposedly detect the precise whereabouts of an injured flapping fish. 1051 01:10:18,000 --> 01:10:23,000 In a previous episode the guys tested this by playing the yummy hum. 1052 01:10:24,000 --> 01:10:29,000 A 40 hertz tone that's apparently the exact frequency made by a flapping fish. 1053 01:10:30,000 --> 01:10:35,000 We played the sounds. Sharks didn't come and we know they hurt them. 1054 01:10:36,000 --> 01:10:44,000 But by going high tech the experiment failed to satisfy Adam, Jamie and according to your emails you. 1055 01:10:45,000 --> 01:10:51,000 So back in the Caribbean it's take two. But this time the guys are using the real thing. 1056 01:10:52,000 --> 01:11:00,000 Jamie's going to rot in a little boat and drop two fish into the water on poles. One will remain stationary and the other one he's going to make flat like it's injured. 1057 01:11:01,000 --> 01:11:04,000 I'm going to watch below and see if the sharks prefer one over the other. 1058 01:11:05,000 --> 01:11:13,000 I'm about to do my very first dive out of the cage and in order to do so I'm wearing 18 pounds of fine stainless steel. 1059 01:11:14,000 --> 01:11:16,000 Mesh chainmail made by a company called Neptune. 1060 01:11:18,000 --> 01:11:23,000 And while it doesn't make me shark proof it definitely makes me shark resistant. 1061 01:11:24,000 --> 01:11:30,000 Adam may be suitably suited wielding a shark shield and surrounded by experienced safety divers. 1062 01:11:32,000 --> 01:11:33,000 It's giving me the eye. 1063 01:11:34,000 --> 01:11:37,000 But he's seen the movie Jaws 57 times. 1064 01:11:38,000 --> 01:11:41,000 Jamie I don't mind telling you I'm a little freaked out. 1065 01:11:41,000 --> 01:11:42,000 Twice last night. 1066 01:11:43,000 --> 01:11:44,000 Okay here we go. 1067 01:11:45,000 --> 01:11:46,000 Ready for the flapping fish test. 1068 01:11:47,000 --> 01:11:50,000 Alright Jamie's making one flap. It looks pretty good. 1069 01:11:51,000 --> 01:11:53,000 It's definitely a flapping fish. 1070 01:11:54,000 --> 01:12:02,000 And if the myth is true the sharks attuned to the sound and vibration of an injured fish will go for the flapper first time every time. 1071 01:12:03,000 --> 01:12:04,000 There they come. 1072 01:12:05,000 --> 01:12:07,000 It's definitely a party under the flapping fish boat. 1073 01:12:07,000 --> 01:12:14,000 Yep it took a few minutes but the local lemon sharks who work out there is such a thing as a free lunch take the bait. 1074 01:12:15,000 --> 01:12:17,000 It's fit for the not flapping fish. 1075 01:12:18,000 --> 01:12:19,000 And the whole rig. 1076 01:12:20,000 --> 01:12:21,000 Oh no he's taking the whole rig away. 1077 01:12:22,000 --> 01:12:24,000 Your whole rig is going away with that shark. 1078 01:12:25,000 --> 01:12:32,000 So given the choice the first lunch customer snacked on the dead fish and ignored the apparently injured flapping fish. 1079 01:12:32,000 --> 01:12:37,000 But this is science and one sample a result does not make. 1080 01:12:38,000 --> 01:12:39,000 Which one you want? 1081 01:12:40,000 --> 01:12:41,000 Here comes another bad boy. 1082 01:12:42,000 --> 01:12:43,000 He's gone for the flapping fish. 1083 01:12:45,000 --> 01:12:48,000 But I want to know is why do they keep swimming near me? 1084 01:12:49,000 --> 01:12:51,000 There's a hint on the not flapping fish. 1085 01:12:52,000 --> 01:12:53,000 Come on. 1086 01:12:54,000 --> 01:12:55,000 He's got it. 1087 01:12:56,000 --> 01:12:57,000 After Jamie runs out of fish. 1088 01:12:58,000 --> 01:12:59,000 Oh there's a hint. 1089 01:13:00,000 --> 01:13:01,000 There it goes. 1090 01:13:03,000 --> 01:13:04,000 That's another one for the shaker. 1091 01:13:05,000 --> 01:13:06,000 And Adam runs out of air. 1092 01:13:07,000 --> 01:13:08,000 They decide to call it a day. 1093 01:13:09,000 --> 01:13:10,000 That was awesome. 1094 01:13:11,000 --> 01:13:14,000 At six to three the final score favors the flapping fish. 1095 01:13:15,000 --> 01:13:17,000 But it's not the nine zero they were hoping for. 1096 01:13:18,000 --> 01:13:21,000 And Jamie thinks something fishy is going on. 1097 01:13:22,000 --> 01:13:24,000 It seems like they're responding more to the flapping fish. 1098 01:13:25,000 --> 01:13:28,000 But is the flapping really what they're responding to? 1099 01:13:28,000 --> 01:13:33,000 With the flapping and stationary fish leaking fish blood the sharks noses would have been 1100 01:13:34,000 --> 01:13:36,000 switching as soon as they hit the water. 1101 01:13:37,000 --> 01:13:39,000 And of course both fish were in plain view. 1102 01:13:40,000 --> 01:13:42,000 He's bitten the non-flapping fish. 1103 01:13:43,000 --> 01:13:48,000 With those additional variables it's impossible to tell what the sharks were responding to. 1104 01:13:50,000 --> 01:13:51,000 Come on. 1105 01:13:52,000 --> 01:13:57,000 I feel like our test is flawed because we don't know that it was only the flapping they were attracted to. 1106 01:13:58,000 --> 01:14:01,000 And it's not going to go to sea and smell that it was a fish. 1107 01:14:02,000 --> 01:14:03,000 Well let's remove those two variables. 1108 01:14:04,000 --> 01:14:08,000 We'll use a screen so they can't see it and we won't use a real fish. 1109 01:14:09,000 --> 01:14:10,000 Perfect. 1110 01:14:28,000 --> 01:14:30,000 We're back with the most petrifying pastimes of all. 1111 01:14:32,000 --> 01:14:35,000 If anybody finds this tape tell them I'm sorry. 1112 01:14:36,000 --> 01:14:39,000 I'm so scared of the sharks. 1113 01:14:40,000 --> 01:14:44,000 And now it's time to shed some light on a piece of flashlight folklore. 1114 01:14:45,000 --> 01:14:49,000 For this myth to be confirmed that sharks are attracted to flashlights. 1115 01:14:50,000 --> 01:14:53,000 I'm going to see a much more significant number of sharks and I want to see a different behavior pattern. 1116 01:14:54,000 --> 01:14:57,000 I want to see that the sharks are getting more aggressive when they see the flashlights. 1117 01:14:58,000 --> 01:14:59,000 So change that. 1118 01:15:00,000 --> 01:15:01,000 I don't want to actually see them get more aggressive. 1119 01:15:02,000 --> 01:15:03,000 That's just what it has to be if the myth was confirmed. 1120 01:15:04,000 --> 01:15:07,000 Remember the dive without flashlights yielded six sharks. 1121 01:15:08,000 --> 01:15:10,000 So if the myth is true that's the number to beat. 1122 01:15:18,000 --> 01:15:21,000 On the way down to the wreck Carrie once again makes the first sighting. 1123 01:15:23,000 --> 01:15:24,000 Another turtle. 1124 01:15:25,000 --> 01:15:27,000 I like seeing turtles so much more than sharks. 1125 01:15:28,000 --> 01:15:32,000 The flashlights on the guys creep into their eerie moonlit positions. 1126 01:15:33,000 --> 01:15:35,000 And then it's a go on the 20 minute timer. 1127 01:15:36,000 --> 01:15:38,000 Everyone I'm starting the clock now. 1128 01:15:41,000 --> 01:15:43,000 This time the sharks appear almost immediately. 1129 01:15:44,000 --> 01:15:45,000 Two sharks over. 1130 01:15:46,000 --> 01:15:49,000 And the numbers climb faster than the team's heart rate. 1131 01:15:50,000 --> 01:15:52,000 Ten two sharks, twenty three sharks. 1132 01:15:53,000 --> 01:15:55,000 I got a lot of activity down here. 1133 01:15:55,000 --> 01:15:56,000 I got two sharks. 1134 01:15:57,000 --> 01:15:59,000 I got 34 sharks, five, six sharks right here. 1135 01:16:00,000 --> 01:16:02,000 Definitely, it's a slight. 1136 01:16:03,000 --> 01:16:04,000 I'm just creeping me out. 1137 01:16:05,000 --> 01:16:06,000 They're getting really close. 1138 01:16:07,000 --> 01:16:08,000 Wait close to them before. 1139 01:16:09,000 --> 01:16:10,000 Look at this guy right here. 1140 01:16:11,000 --> 01:16:12,000 He's coming straight for the light. 1141 01:16:13,000 --> 01:16:14,000 Already the shark count has reached 12. 1142 01:16:15,000 --> 01:16:16,000 Double that of last night. 1143 01:16:17,000 --> 01:16:18,000 And that's not the only difference. 1144 01:16:19,000 --> 01:16:20,000 Oh my gosh. 1145 01:16:21,000 --> 01:16:22,000 Oh my gosh. 1146 01:16:22,000 --> 01:16:23,000 The shark and the head with the flashlight. 1147 01:16:24,000 --> 01:16:25,000 These sharks are starting to get aggressive. 1148 01:16:26,000 --> 01:16:30,000 Yep, there's a clear distinction between tonight and the control test. 1149 01:16:31,000 --> 01:16:32,000 The close encounters are closer. 1150 01:16:33,000 --> 01:16:35,000 So the team bring a close to the encounters. 1151 01:16:36,000 --> 01:16:38,000 Hey guys, there's still five minutes to go. 1152 01:16:39,000 --> 01:16:40,000 But it's getting dangerous. 1153 01:16:41,000 --> 01:16:42,000 I think we should get out. 1154 01:16:43,000 --> 01:16:44,000 Now you don't need to ask me twice. 1155 01:16:45,000 --> 01:16:46,000 Let's get out of here. 1156 01:16:47,000 --> 01:16:48,000 It's so dangerous that the team pulls the plug. 1157 01:16:48,000 --> 01:16:54,000 It's all lights out as they carefully and somewhat hastily make their way back to the boat. 1158 01:16:55,000 --> 01:16:57,000 That was probably one of the scariest moments of my life. 1159 01:16:58,000 --> 01:16:59,000 I started flashing the flashlight around. 1160 01:17:00,000 --> 01:17:04,000 And all of a sudden there's about nine sharks and they just kept coming in. 1161 01:17:05,000 --> 01:17:06,000 They were going for the camera lights. 1162 01:17:07,000 --> 01:17:08,000 They were going for my flashlight. 1163 01:17:09,000 --> 01:17:10,000 At one time I had to actually punch the shark in the nose with my flashlight. 1164 01:17:11,000 --> 01:17:12,000 Because it came right up in my face. 1165 01:17:13,000 --> 01:17:15,000 And it was just like, okay, call this done. 1166 01:17:16,000 --> 01:17:17,000 Let's get out of here. 1167 01:17:18,000 --> 01:17:20,000 So I think this was a stellar test. 1168 01:17:21,000 --> 01:17:22,000 Their behavior change. 1169 01:17:23,000 --> 01:17:24,000 You could really see them darting around. 1170 01:17:25,000 --> 01:17:26,000 You could see them going right straight up the light. 1171 01:17:27,000 --> 01:17:28,000 It was like getting their attention. 1172 01:17:29,000 --> 01:17:31,000 Shine the light on them and they want to go after it. 1173 01:17:33,000 --> 01:17:38,000 So in just 15 minutes the flashlights attracted more than twice as many sharks. 1174 01:17:39,000 --> 01:17:41,000 There was a significant change in their behavior. 1175 01:17:42,000 --> 01:17:45,000 And if you're expecting a summary from the team, here it is. 1176 01:17:46,000 --> 01:17:47,000 That test was crazy. 1177 01:17:48,000 --> 01:17:49,000 All right, so let's break it down. 1178 01:17:50,000 --> 01:17:53,000 Well, when we had our flashlights, more sharks came in a shorter amount of time 1179 01:17:54,000 --> 01:17:55,000 and they were much more aggressive. 1180 01:17:56,000 --> 01:17:59,000 Yeah, and when we had our flashlights it seemed like they were going straight for us. 1181 01:18:00,000 --> 01:18:02,000 True, but maybe it was the light illuminating their normal prey 1182 01:18:03,000 --> 01:18:04,000 and that's what piqued their interest. 1183 01:18:05,000 --> 01:18:07,000 Or maybe the electrical activity from the flashlights attracted them. 1184 01:18:08,000 --> 01:18:12,000 Well, since we can't totally be sure which one it was, I say we call this one plausible. 1185 01:18:13,000 --> 01:18:14,000 Yeah, based on our test I think we can call this one plausible. 1186 01:18:15,000 --> 01:18:16,000 Plausible it is. 1187 01:18:19,000 --> 01:18:24,000 Adam and Jamie are talking to the animals. 1188 01:18:25,000 --> 01:18:26,000 Come on, which one you want? 1189 01:18:27,000 --> 01:18:29,000 Well, we know sharks find me delicious. 1190 01:18:30,000 --> 01:18:36,000 The question is, would they find me more delicious if I'm doing this as opposed to this? 1191 01:18:38,000 --> 01:18:41,000 But our Dr. Doolittle's have yet to answer that question 1192 01:18:42,000 --> 01:18:45,000 because so far their flapping fish test is flawed. 1193 01:18:45,000 --> 01:18:51,000 The myth is, the shark is attracted to the sound or the movement of an injured fish. 1194 01:18:52,000 --> 01:18:57,000 Now, we definitely created that, but it was also clearly a fish and it was smelling like a fish. 1195 01:18:58,000 --> 01:19:01,000 So we don't know that it was only the movement, it could have been the sight and it could have been the smell. 1196 01:19:02,000 --> 01:19:04,000 At this point in our test we need to remove all the variables. 1197 01:19:05,000 --> 01:19:08,000 This skirt right here will remove any visual cues for the sharks 1198 01:19:09,000 --> 01:19:12,000 and the fact that this is plastic will remove any scent cues for the sharks. 1199 01:19:12,000 --> 01:19:18,000 If the sharks respond to it, it means they're only responding to the sound of the flapping fish. 1200 01:19:19,000 --> 01:19:22,000 Okay, flapping fish, no variables. 1201 01:19:25,000 --> 01:19:28,000 I'm flapping at the surface so it'll make more noise. 1202 01:19:29,000 --> 01:19:32,000 And I can't think that they'd be able to see that, but I can sure hear it. 1203 01:19:34,000 --> 01:19:40,000 After mere minutes of Jamie's shake and fake, the sharks begin to gather. 1204 01:19:40,000 --> 01:19:45,000 They're coming close and they can't see the thing, but they're checking it out. 1205 01:19:46,000 --> 01:19:50,000 And with Jamie attracting interest, but no bites, the conclusions are quick to follow. 1206 01:19:51,000 --> 01:19:58,000 Well, I know what I think. The sharks are interested in what's going on, but they come near the skirt and it doesn't look like anything to eat. 1207 01:19:59,000 --> 01:20:03,000 So I think the real test is, I'm just going to flap on the surface with my rig. 1208 01:20:03,000 --> 01:20:11,000 Jamie's theory being they can hear the flapping and slapping on the surface, but without a visual cue, they're not convinced dinner is on offer. 1209 01:20:12,000 --> 01:20:17,000 But combine the sight and sound of a meal, the sharks take the bait. 1210 01:20:18,000 --> 01:20:21,000 Oh, this is a different bite. I'm just going to keep it on the flapping fish. 1211 01:20:22,000 --> 01:20:23,000 Hey! 1212 01:20:24,000 --> 01:20:29,000 However, while Jamie's having fun up top, inducing a feeding frenzy with fake plastic fish... 1213 01:20:30,000 --> 01:20:32,000 There we go. That's what I'm talking about. 1214 01:20:33,000 --> 01:20:37,000 Adam's what's known in the diving fraternity as freaking out. 1215 01:20:38,000 --> 01:20:46,000 Dude, that was totally out of control. As soon as Jamie removed the blind and exposed the flapping fish, the lemon sharks went nuts. 1216 01:20:47,000 --> 01:20:48,000 Plus, a tiger shark turned up. 1217 01:20:49,000 --> 01:20:50,000 Adam, I'm coming out. 1218 01:20:51,000 --> 01:20:54,000 Which, according to my better judgment, meant I had to be somewhere else. 1219 01:20:55,000 --> 01:20:56,000 Big baby. 1220 01:20:58,000 --> 01:21:02,000 While Adam gets his heart rate back under control, how about some science? 1221 01:21:03,000 --> 01:21:08,000 I'm attracted to flapping fish, sure. They're opportunistic hunters. They're curious. 1222 01:21:09,000 --> 01:21:11,000 They're going to investigate anything that gets their attention. 1223 01:21:12,000 --> 01:21:15,000 But is the sound of flapping fish alone enough to incite an attack? 1224 01:21:16,000 --> 01:21:18,000 No, they need the other stimulus as well. 1225 01:21:20,000 --> 01:21:24,000 Alright guys, I'm ready to call this one if you are plausible. 1226 01:21:25,000 --> 01:21:26,000 What he said? 1227 01:21:27,000 --> 01:21:28,000 Definitely plausible. 1228 01:21:34,000 --> 01:21:41,000 If you're unlucky enough to get attacked by a great white shark, what should you do? 1229 01:21:42,000 --> 01:21:46,000 Accepted wisdom states gouging the shark in the eye will set you free. 1230 01:21:47,000 --> 01:21:51,000 But do you have time to find and gouge before you bleed out? 1231 01:21:54,000 --> 01:22:02,000 For answers, Adam and Jamie have built Bruce, a 17-foot animatronics great white shark with a realistic attack action. 1232 01:22:03,000 --> 01:22:04,000 All they need is some water. 1233 01:22:05,000 --> 01:22:06,000 That's it, yeah! 1234 01:22:07,000 --> 01:22:19,000 Saw with a sprinkle of jump cuts, a dash of audio punctuation and a topping of fast forward, Bruce is sitting on the side of Frisco Bay watching the tide roll away. 1235 01:22:20,000 --> 01:22:28,000 Every morning the high-temin people head out into San Francisco Bay, foraging for the food that will make their nightly meal. 1236 01:22:30,000 --> 01:22:31,000 Where are you going, Adam? 1237 01:22:31,000 --> 01:22:33,000 I was waiting for the tide to come in. 1238 01:22:34,000 --> 01:22:36,000 Be set upon by dangerous robotic sharks. 1239 01:22:37,000 --> 01:22:40,000 There's this tenuous existence at the very edges of society. 1240 01:22:42,000 --> 01:22:45,000 But enough of the high-temin, because surf's up. 1241 01:22:46,000 --> 01:22:50,000 While we're waiting for the tide, I thought we should do a good real-world test of the jaws. 1242 01:22:51,000 --> 01:22:54,000 We're going to give him his first meal, a little bit of a teaser, a decoy, if you will. 1243 01:22:55,000 --> 01:22:56,000 Surfboard. 1244 01:22:57,000 --> 01:22:58,000 See what he does with it. 1245 01:22:59,000 --> 01:23:00,000 Alright, go for it! 1246 01:23:02,000 --> 01:23:09,000 For test one, the boys just want to see how a bite from Bruce compares to the real deal. 1247 01:23:12,000 --> 01:23:13,000 I didn't think he was letting go of that. 1248 01:23:14,000 --> 01:23:21,000 With his anatomically correct teeth and his accurate bite force, Bruce gets a grip that looks identical to that of a great wife. 1249 01:23:23,000 --> 01:23:24,000 That test was great. 1250 01:23:25,000 --> 01:23:30,000 The marks he made in our surfboard look exactly like marks we've seen in surfboards bitten by sharks. 1251 01:23:31,000 --> 01:23:35,000 Okay, so Bruce has the bite and bite force of a real shark. 1252 01:23:37,000 --> 01:23:40,000 But to see if he attacks and thrashes like a real shark. 1253 01:23:41,000 --> 01:23:43,000 Oh, look at that. He's in his jammies again. 1254 01:23:44,000 --> 01:23:45,000 Cue the human analog. 1255 01:23:46,000 --> 01:23:47,000 There we go. 1256 01:23:48,000 --> 01:23:49,000 Isn't that comfy? 1257 01:23:51,000 --> 01:23:58,000 We want to show with the patented Mythbusters human analog that Bruce has the right stuff when it comes to putting a victim through the ringer. 1258 01:23:59,000 --> 01:24:00,000 He's got it. 1259 01:24:01,000 --> 01:24:02,000 He sure does. 1260 01:24:03,000 --> 01:24:04,000 Come on up and thrash. 1261 01:24:04,000 --> 01:24:05,000 Okay. 1262 01:24:05,000 --> 01:24:08,000 Jamie fires up the pistons and Bruce goes to work. 1263 01:24:08,000 --> 01:24:09,000 Are you ready? 1264 01:24:09,000 --> 01:24:10,000 Okay, go. 1265 01:24:16,000 --> 01:24:17,000 That's like the best toy ever. 1266 01:24:20,000 --> 01:24:26,000 It's not pretty, but Bruce's articulated spine is letting him thrash just like a real shark. 1267 01:24:28,000 --> 01:24:29,000 That's awful. 1268 01:24:29,000 --> 01:24:30,000 That's a horror show. 1269 01:24:32,000 --> 01:24:36,000 I think he's ready for human trials. 1270 01:24:36,000 --> 01:24:40,000 And amid the life-like carnage, the guys did learn something. 1271 01:24:41,000 --> 01:24:45,000 So here's the thing. If a real shark's got you in its jaws, you really don't have much time. 1272 01:24:45,000 --> 01:24:51,000 Not only do you have to worry about chunks being removed, you have to worry about bleeding to death, drowning. 1273 01:24:51,000 --> 01:24:55,000 All this could happen in a few seconds, so if you're going to do something, you better do it quick. 1274 01:24:56,000 --> 01:25:00,000 In other words, if you don't get to the peepers and penetrate pronto, 1275 01:25:01,000 --> 01:25:04,000 it looks like a dog with a chew toy. 1276 01:25:04,000 --> 01:25:06,000 you could end up like porky. 1277 01:25:06,000 --> 01:25:08,000 There's your problem. 1278 01:25:08,000 --> 01:25:10,000 Actually, it's soon to be Tori's problem. 1279 01:25:10,000 --> 01:25:12,000 We've seen what the shark did to the pig. 1280 01:25:12,000 --> 01:25:15,000 Now we're going to see what the shark does to Tori. 1281 01:25:16,000 --> 01:25:24,000 We're waiting for the tide to come in and Jamie and I realized that we don't make ideal test subjects for this ring because we built it and we know how to stop it. 1282 01:25:24,000 --> 01:25:26,000 So I called Tori. 1283 01:25:26,000 --> 01:25:29,000 Yep, when you need a front man, stunt man, 1284 01:25:32,000 --> 01:25:35,000 or fall guy, who else you going to call? 1285 01:25:35,000 --> 01:25:37,000 Alright, let's do it again. 1286 01:25:37,000 --> 01:25:44,000 And to make sure our next human analog doesn't actually get bitten, Adam replaces the steel teeth with the rubber. 1287 01:25:45,000 --> 01:25:47,000 So why am I here in my wetsuit? 1288 01:25:47,000 --> 01:25:52,000 We have a challenge for you. It's down at the water's edge. Come on down and I'll present it. 1289 01:25:52,000 --> 01:25:54,000 Should I be nervous? 1290 01:25:54,000 --> 01:25:55,000 Yes. 1291 01:25:57,000 --> 01:25:58,000 Holy crap. 1292 01:25:59,000 --> 01:26:00,000 Are you kidding? 1293 01:26:00,000 --> 01:26:01,000 No. 1294 01:26:01,000 --> 01:26:02,000 What are those teeth made out of? 1295 01:26:02,000 --> 01:26:03,000 The teeth of rubber. 1296 01:26:03,000 --> 01:26:04,000 Okay. 1297 01:26:07,000 --> 01:26:09,000 That is fricking nuts! 1298 01:26:10,000 --> 01:26:16,000 He thrashed you about as hard as we can and you've got to figure out how to stop him from thrashing you about. There is a way. 1299 01:26:16,000 --> 01:26:17,000 Am I the only one? 1300 01:26:18,000 --> 01:26:21,000 Well, actually, once you test it, the insurance company says it's okay for me to go in. 1301 01:26:21,000 --> 01:26:23,000 He sucks. 1302 01:26:23,000 --> 01:26:25,000 Jamie, is this safe? 1303 01:26:25,000 --> 01:26:27,000 I don't know. We're going to find out. 1304 01:26:33,000 --> 01:26:36,000 In case you haven't been paying attention, it's shark week. 1305 01:26:36,000 --> 01:26:40,000 That's a shark that Jamie and I built and it's fully animatronic. 1306 01:26:41,000 --> 01:26:43,000 Dude, it's so perfect. 1307 01:26:43,000 --> 01:26:47,000 We'll throw a test subject all around like a real shark. 1308 01:26:47,000 --> 01:26:53,000 The only way to stop it is to jam your thumbs into his eyeballs, which happen to be emergency stop switches. 1309 01:26:54,000 --> 01:26:59,000 The thing we realized is, neither Jamie nor I makes an ideal test subject for this because we built it. We know how to stop it. 1310 01:26:59,000 --> 01:27:01,000 So I gave Tori a call and... 1311 01:27:01,000 --> 01:27:02,000 Holy crap. 1312 01:27:04,000 --> 01:27:05,000 Are you kidding? 1313 01:27:05,000 --> 01:27:10,000 And we're literally going to throw him into the deep bend and see if he can figure out a way to stop the shark from throwing him about. 1314 01:27:10,000 --> 01:27:11,000 What's my safety word? 1315 01:27:11,000 --> 01:27:12,000 Your safety word? 1316 01:27:12,000 --> 01:27:13,000 I can't feel my leg. 1317 01:27:13,000 --> 01:27:14,000 No, your safety word is... 1318 01:27:14,000 --> 01:27:16,000 Ahhhh! Ahhhh! 1319 01:27:16,000 --> 01:27:17,000 Like that. 1320 01:27:17,000 --> 01:27:18,000 Awesome. 1321 01:27:18,000 --> 01:27:23,000 So Tori has been briefed that he's going to be the victim of a shark attack. 1322 01:27:23,000 --> 01:27:25,000 How did I get signed up for this one? 1323 01:27:25,000 --> 01:27:27,000 That's all he's got to go on. 1324 01:27:28,000 --> 01:27:32,000 This is probably one of my worst nightmares, being eaten by a great white shark. 1325 01:27:32,000 --> 01:27:35,000 Is there any place I should not stick my hands? 1326 01:27:35,000 --> 01:27:43,000 And what I'm supposed to do is strap myself into the jaws of the shark and then figure a way to make him stop chomping on me. 1327 01:27:44,000 --> 01:27:47,000 Yep, that's the horrifying scenario Tori will be testing. 1328 01:27:47,000 --> 01:27:52,000 A great white has exploded through murky water and taken a bite. 1329 01:27:53,000 --> 01:27:54,000 How's that feel? 1330 01:27:54,000 --> 01:27:55,000 Great. 1331 01:27:55,000 --> 01:27:57,000 It's real comfortable. 1332 01:27:57,000 --> 01:27:58,000 Okay. 1333 01:27:58,000 --> 01:28:03,000 In those few crucial seconds before blood and limb loss weaken and exhaust you... 1334 01:28:03,000 --> 01:28:06,000 I hope you choke on my pelvis bone. 1335 01:28:07,000 --> 01:28:11,000 Can you find and gouge the eyes or will it be too late? 1336 01:28:11,000 --> 01:28:12,000 Tori, you ready? 1337 01:28:12,000 --> 01:28:13,000 Ready. 1338 01:28:13,000 --> 01:28:14,000 Start thrashing. 1339 01:28:21,000 --> 01:28:22,000 Come on. 1340 01:28:22,000 --> 01:28:23,000 There's a way to stop them. 1341 01:28:25,000 --> 01:28:26,000 Alright, he gills. 1342 01:28:26,000 --> 01:28:27,000 We're in the gills. 1343 01:28:30,000 --> 01:28:31,000 Come on. 1344 01:28:32,000 --> 01:28:33,000 You got it. 1345 01:28:33,000 --> 01:28:34,000 Hey! 1346 01:28:36,000 --> 01:28:37,000 His eyes! 1347 01:28:37,000 --> 01:28:39,000 He doesn't like it when you catch his eyes. 1348 01:28:39,000 --> 01:28:40,000 He's got his eyes! 1349 01:28:42,000 --> 01:28:43,000 He figured it out! 1350 01:28:44,000 --> 01:28:46,000 And he was enjoying himself. 1351 01:28:46,000 --> 01:28:50,000 After all, Bruce is only wearing his cosmetic dentures. 1352 01:28:50,000 --> 01:28:56,000 But a shark attack happens in just seconds and Tori took around 15 to find the eyes. 1353 01:28:56,000 --> 01:29:01,000 The grim reality is Tori would have surely died from his injuries. 1354 01:29:01,000 --> 01:29:05,000 Tori was in fact able to find the eye, hit the switch and turn it off. 1355 01:29:05,000 --> 01:29:07,000 That is awesome! 1356 01:29:07,000 --> 01:29:11,000 In my opinion, this was a real life situation. 1357 01:29:11,000 --> 01:29:12,000 It's too late. 1358 01:29:12,000 --> 01:29:16,000 Sharks got you around midsection, a shark that big, fully chomped down. 1359 01:29:16,000 --> 01:29:17,000 You're done. 1360 01:29:17,000 --> 01:29:19,000 Maybe, maybe not. 1361 01:29:19,000 --> 01:29:20,000 Can I get out now? 1362 01:29:22,000 --> 01:29:27,000 Because back in 1963, after being bitten in a similar position to Tori, 1363 01:29:27,000 --> 01:29:30,000 Australian Rodney Fox survived. 1364 01:29:30,000 --> 01:29:34,000 While clamped firmly in the mouth of a three meter great white, 1365 01:29:34,000 --> 01:29:39,000 he had the presence of mind to strike at his attacker's eyes and was released. 1366 01:29:42,000 --> 01:29:47,000 But like Jamie said, the injuries would be massive and you wouldn't have much time. 1367 01:29:49,000 --> 01:29:55,000 So being able to physically reach the eyes in the shortest possible time is the key to this myth. 1368 01:29:55,000 --> 01:29:58,000 Cue the final human analog. 1369 01:29:58,000 --> 01:30:00,000 I'd like to take a ride in our shark. 1370 01:30:00,000 --> 01:30:06,000 More than that, I'd actually like to take a ride in several different positions to see if getting thrashed about 1371 01:30:06,000 --> 01:30:12,000 under different circumstances makes it easier or more difficult to get to the shark's eyeballs. 1372 01:30:12,000 --> 01:30:19,000 And for Adam's first shark attack of the day, he'll be simulating a swimmer on the surface of the water. 1373 01:30:19,000 --> 01:30:23,000 So the shark bit Adam in the ass. Are you ready to go, Adam? 1374 01:30:23,000 --> 01:30:25,000 I'm ready. 1375 01:30:29,000 --> 01:30:35,000 Unlike Tori, Adam knows to go for the odds, but being faced down, he's finding it much harder. 1376 01:30:35,000 --> 01:30:43,000 And that's ignoring what the handicap of genuine hard stopping fear and blood loss would bring to the equation. 1377 01:30:43,000 --> 01:30:45,000 I got it! 1378 01:30:46,000 --> 01:30:50,000 Well, that one I was in a classic swimming position. 1379 01:30:50,000 --> 01:30:58,000 The way you'd be, I think most likely, would be attacked by a shark and it is exponentially more difficult to find the shark's eye that way. 1380 01:30:58,000 --> 01:31:04,000 In fact, I dare say that was a real shark slippery and moving around. I probably wouldn't have been able to do it. 1381 01:31:04,000 --> 01:31:06,000 I got it! 1382 01:31:06,000 --> 01:31:11,000 So it looks like the eye gouging myth boils down to position, position, position. 1383 01:31:11,000 --> 01:31:19,000 This next position I'm going to take in our shark is a little number I like to call the Captain Quint position, or simply the Quint. 1384 01:31:19,000 --> 01:31:20,000 That's it. 1385 01:31:20,000 --> 01:31:30,000 It comes from the end of Jaws when poor Captain Quint slid down the deck of the Orca and into the licking Jaws of Bruce to his doom. 1386 01:31:30,000 --> 01:31:34,000 We've replaced our animatronic shark with a real shark. Let's see if he notices. 1387 01:31:34,000 --> 01:31:37,000 Come on, let's go. I want to ride this puppy. 1388 01:31:37,000 --> 01:31:39,000 Okay, Adam, you ready to go? 1389 01:31:39,000 --> 01:31:41,000 Come on. 1390 01:31:44,000 --> 01:31:50,000 I'll admit, even though it looks like I'm handing it up, being thrust around like that is no picnic. 1391 01:31:50,000 --> 01:31:56,000 Imagine tying your shoes on a roller coaster wearing mittens. It's difficult. 1392 01:31:59,000 --> 01:32:01,000 That's fall. 1393 01:32:01,000 --> 01:32:08,000 In a real situation, I'm sure the big shark of this size is going to even be faster and more violent. 1394 01:32:08,000 --> 01:32:14,000 I don't think you're going to have the time or the ability to dig into those eyes to repel the shark. 1395 01:32:15,000 --> 01:32:21,000 Adam struck me as a little too happy in that last test. We're going to have to do something different. 1396 01:32:21,000 --> 01:32:27,000 In an attempt to up the realism, Jamie's got one last trick up his white shirt sleeve. 1397 01:32:27,000 --> 01:32:33,000 I want more violence out of this shark, so I'm going to double the voltage. It'll double the speed. 1398 01:32:35,000 --> 01:32:39,000 That's about all we can do without blowing these hydraulic motors up. 1399 01:32:39,000 --> 01:32:41,000 All right, I'm ready. 1400 01:32:45,000 --> 01:32:52,000 Yes, this time the difference is clear. Adam's being tossed around like human salad with a wetsuit dressing. 1401 01:32:53,000 --> 01:32:56,000 That last test was the deciding factor for me. 1402 01:32:58,000 --> 01:33:02,000 With the additional power and speed, there was a huge difference. 1403 01:33:02,000 --> 01:33:04,000 That was rough. 1404 01:33:04,000 --> 01:33:09,000 A real shark could be thinking about dessert before Adam could have gotten anywhere near the eyes. 1405 01:33:11,000 --> 01:33:14,000 So what are we going to do with that thing when we get it back to the shop? 1406 01:33:14,000 --> 01:33:16,000 Take it from the ceiling. 1407 01:33:16,000 --> 01:33:19,000 Maybe we can turn it into a big food processor. What do you think? 1408 01:33:22,000 --> 01:33:24,000 You know, I was looking for something to put on that wall. 1409 01:33:24,000 --> 01:33:25,000 We're keeping it? 1410 01:33:25,000 --> 01:33:26,000 We're keeping it. 1411 01:33:26,000 --> 01:33:27,000 Awesome. 1412 01:33:27,000 --> 01:33:28,000 How do you want to call this one? 1413 01:33:28,000 --> 01:33:30,000 Well, there are a couple of elements to this. 1414 01:33:30,000 --> 01:33:33,000 The first one is can you find the eyes? 1415 01:33:33,000 --> 01:33:36,000 The second element is can you find the eyes in time to save your life? 1416 01:33:36,000 --> 01:33:39,000 For the first one, Tori and I both found the eyes every single time. 1417 01:33:39,000 --> 01:33:41,000 Okay, that's one down. 1418 01:33:41,000 --> 01:33:46,000 And as far as how much time it took, that really was variable depending upon the position you're in. 1419 01:33:46,000 --> 01:33:51,000 But as a method of last resort, I would try it. I'm calling this one plausible. 1420 01:33:51,000 --> 01:33:53,000 Okay, plausible it is.