The wings of bats are unique structures that allow them to fly. Unlike birds, which have feathers, bat wings are made of a thin membrane of skin called the patagium. This membrane stretches between their elongated fingers and body, providing a flexible surface for flight. Bats are the only mammals capable of sustained flight, and their wings are adapted for maneuverability and speed. Bats use their wings not only for flying but also for echolocation, a method of navigating and hunting using sound waves. This ability helps them locate prey in the dark, making them effective nocturnal hunters. Their wings play a crucial role in their survival and ecological contributions.