The biggest bat is a flying fox bat. There are over one thousand bats in the world. The bats wing span can get up from two to eighty inches. Bats clean themselves with their tongue. Some bats are big and little because they're born like that.
Some people kill bats because they think they're mean.
Bats are the only flying mammals, plus they kill insects. Bats are the most amazing flying mammals. I have known about bats for a few years. Bats may not seem like you think they are. Bats do a lot of good things for us, and they can do some neat things too.