The mammal known to be able to fly is the bat. Bats are unique among mammals because they possess wings formed by a thin membrane of skin stretched between elongated fingers. This structure allows them to achieve true flight, making them the only group of mammals capable of sustained flight. There are over 1,400 species of bats, which play essential roles in ecosystems, including pollination, seed dispersal, and insect control. Bats can be found in various habitats worldwide and exhibit diverse feeding habits, such as eating fruit, nectar, or insects, highlighting their ecological importance.