There are over 1,400 bat species in the world, and they are almost exclusively nocturnal. Bats have traditionally been classified as Microchiroptera, or microbats, and Megachiroptera, or megabats.

The dream of flying has always fascinated humanity. In evolutionary history, the ability to fly has emerged independently only three times: in birds, pterosaurs, and, uniquely among mammals, in bats.

They fly like no other creature on Earth, survive for decades, and rarely get cancers. Learning their secrets could lead to new advances for human use. How do bats fly? Scientists at Brown University ...