
A dead bat still hanging from the ceiling of a cave.
Fun fact: When the muscles in a bat’s feet/legs relax, the foot closes. (Contrast to our hands, which open when the controlling muscles relax.) This is why bats can sleep—and die—upside down.

A dead bat still hanging from the ceiling of a cave.
Fun fact: When the muscles in a bat’s feet/legs relax, the foot closes. (Contrast to our hands, which open when the controlling muscles relax.) This is why bats can sleep—and die—upside down.