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Label Bat External Anatomy Diagram
arm bones - the arms consist of an upper arm (humerus) and a forearm (with a radius and reduced ulna), with an elbow between them.
body - the bat's body is covered with fur.
ears - bats have large external ears and good hearing. Carnivorous (meat-eating) bats have larger ears than herbivorous (plant-eating) bats; meat-eaters also have echolocation abilities.
eyes - bats have good eyesight and can see very well in the dark (the saying "blind as a bat" is silly).
finger bones - bats have four very long finger bones that support the outer wing (and a short thumb).
five-toed feet - bats have two, five-toed feet and short legs with knees. Bats sleep hanging upside down, hanging by claws on their toes.
nose - most bats have a good sense of smell.
thumb - the clawed thumb of the bat is very short (unlike the other four fingers, which are very long).
uropatagium - the flap of skin between the bat's hind legs and the tail.
wings - bats have large wings supported by the arm and finger bones. The wings are covered with leathery skin (called the patagium) and are powered by large muscles in the body. Bats are the only flying mammal.
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