Today we learned more about bats. We learned that bats are mammals. Bats are the only mammals that can fly. Bats are nocturnal. They sleep upside down. Some bats hibernate in the winter and some migrate south. The grey bat is endangered. People sometimes go into caves and wake up hibernating bats. This hurts the bats because there is no food for them to eat. We also found out that some bats eat insects, fruit, blood, or fish. We can't wait to learn more!!