Question

why animals have 4 leg?

Answer 1

Animals mainly have 4 legs because animals are mainly bigger than insects, and that is because insects breath through their skin and that capacity only increases with the square of its length but energy requirements increase with the cube, so insects have to be small.

Answer 2

Hii...

here is your answer.....

the animals have 4 legs because of they have 2 legs and other two are their hands but that work as legs so.....