– Why do Birds or flying creatures (including insects) in general don’t have teeth?

Question

Additionally, what are pros & cons of beaks as opposed to teeth?

In: 4

Answer 1

Bats are mammals, and have teeth. Birds probably lost bony jaws and teeth as adaptations to reduce weight for flight, but some have bills that serve as teeth to rip and tear food they swallow . Some birds have serrated bills that are analogous to teeth, for grinding vegetation. Insects don’t have a bony skeleton, so no teeth. They do have analogous mouth parts for piercing, sucking, rasping, tearing.

Tl:DR: They don’t need them.