Bats primarily eat insects like beetles, moths, and mosquitos at night. They are preyed upon by other animals like hawks, owls, snakes, weasels, and raccoons. Bats use echolocation to navigate and find food in the dark by emitting sound waves from their mouths or noses and detecting the returning echoes. They live in various places during the day such as caves, crevices, old buildings, bridges, mines, and trees where it is dark since bats are nocturnal.