The Genius Bat: The Secret Life of the Only Flying Mammal

With nearly 1500 species, bats account for more than twenty percent of mammalian species. The most successful and most diverse group of mammals, bats come in different sizes, shapes, and colors, from the tiny bumblebee bat to the giant golden-crowned flying fox. Some bats eat fruit and nectar; others eat frogs, scorpions, or fish. Vampire bats feed on blood. Bats are the only mammals that can fly; their fingers have elongated through evolution to become wings with a unique, super-flexible skin membrane stretched between them. Their robust immune system is one of the reasons for their extreme longevity. A tiny bat can live for forty years.