What animal uses fragmentation to regenerate?

among others are rabbits, rodents, monkeys, dogs and cats. and often from pounds. that's right, they test on animals that were once someone's beloved pet.

The common animals Animal testers usually use are dogs and sometimes bunnies sometimes they can use all different kinds of animals because i guess different things happen to different animals. :) :D

transportation (horses, oxen, donkeys, mules) pets (dogs, cats, etc..) expirimentation (rabbits, rodents, etc) wildlife (whatever you can think of!)

Any thing at all...from Yash Patki

Mostly, the use of animals is to keep an ecosystem in balance. If one animal becomes extinct, there might be a high chance that the ecosystem will then go out of whack, so to speak. But there are...