What animal is industrious?

Great question!! It's a toss-up between rabbits and pigeons for all the obvious reasons.

The word animal means either a member of the animal kingdom, and therefore includes humans, or it means an animal as opposed to a human, in which case it doesn't. So you have to decide which meaning...

well over time the land animals change a little and they need to be underwater to live unlike their land animal ancestors

carnivore

A carnivore. carnivores eat meatthey are also called as "predators".