What kind of animal is this?

Two big ears, flying, like a mouse, that's a bat.

Bats are the only small mammals that can actually fly, and because they look so much like rats with wings, they are sometimes called "flying rats. In fact, bats and mice are completely different animals.

There are many types of bats, most of which are active only at night and hang upside down during the day. This bat is probably lost or sick. Don't worry about it and don't touch it, it may fly away at night.