Bats have few enemies. Such animals as cats, hawks, owls, snakes, and weasels sometimes prey on bats. Bats avoid many enemies on the ground by hanging from high places. Some species of bats live as long as 15 to 25 years. How bats navigate.
Some bats depend on their vision and sense of smell to navigate and to find food at night.
Other bats cannot see well in the dark. They navigate by means of echoes. These echoes result from a series of short, high-frequency sounds that the bats make continually while flying. From these echoes, the animals can determine the direction and distance of objects in the area. This process of navigating is referred to as echolocation.