'Rev Dr' Lenny Flank wrote:

How many bacteria are there on earth . . . . . . . . . .. ?

I think mass would be a better measure than number. Still, the insects outweigh the mammalian population and are better adapted to Earth, as it is, than mammals.

The first forms of line on this planet were one celled thingies. I suspect such like organisms will be the last forms of life on this planet.

Bob Kolker