A Bat is the only mammal that can fly. Bats have a furry body, and their wings are covered by smooth, flexible skin. Most species of bats live in attics, caves, or other sheltered places. Some species live in trees. Bats seem uncommon in many regions because they roost in dark places and come out only at night, when most people are asleep.
Bats hang upside down when they are resting.
Vampire bats include a few kinds of bats that feed on the blood of other animals. The common vampire bat lives in Central and South America. It preys mainly on cattle. It sometimes bites human beings, but such incidents are rare. Vampire bats approach their prey on foot.