Bats and their Young by Prof. Burt G. Wilder. Bats are mammals of the order Chiroptera; with their forelimbs adapted as wings, they are the only mammals naturally capable of true and sustained flight. Bats are more manoeuvrable than birds, flying with their very long spread-out digits covered with a thin membrane or patagium. EXCEPTING the colder regions, all parts of the world are inhabited by bats. There are many kinds, and they often occur in very...