Are there any animals that don't have teeth? Are there any insects that do?

snapping humans?
They are usually around 80

Adult platypus

It was only this year I learned that cows don't have upper front teeth. I find it so bizarre.

First thing that came to mind was a sea anemone .

What about "gummie" bears?

I dont think flys do.

Toads and birds

Lots. On both sides. Even mosquitoes have teeth.

I can't think of an insect but snails have teeth

insects are animals

worms

Jellyfish

Some old creeps in nursing homes don’t have teeth lol