Is a bat a bird or a mammal?

Bats are mammals of the order Chiroptera; with their forelimbs adapted as wings, they are the only mammals naturally capable of true and sustained flight. Bats are more manoeuvrable than birds, flying with their very long spread-out digits covered with a thin membrane or patagium. read more

Bats are mammals not birds, although they share some avian characteristics. They are the only mammals that can truly fly. The "flying squirrel" and gliding possum can glide for short distances, but they don't flap their wings and fly like a bat. read more

Bats are Mammals. A long time ago, people used to think bats were birds without feathers. But now we know that there is no such thing as a featherless bird. read more