Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Dayak Roundleaf Bat (Hipposideros dyacorum) is a species of bat in the Hipposideridae family. It is found in Indonesia and Malaysia. Bats are flying mammals in the order Chiroptera. The forelimbs of bats are webbed and developed as wings, making them the only mammals naturally capable of true and sustained flight. By contrast, other mammals said to fly, such as flying squirrels, gliding possums and colugos, glide rather than fly, and can only glide for short distances.