[eli5] Why do insects have lots of legs while larger animals have 4 or 2? Also, why aren’t there any animals (that I know of) with 3 legs?

Question

[eli5] Why do insects have lots of legs while larger animals have 4 or 2? Also, why aren’t there any animals (that I know of) with 3 legs?

In: 381

Answer 1

The first newt I found had 5 fully functioning legs, no idea why or how. (my dad can vouch for this story lol).
I remember thinking all the ones I later found with 4 legs must have had a bad accident to lose a leg.