These tymbals are located on the anterior part of the tegulae underneath the patagium sclerite. Gliding is accomplished with the help of a parachute-like membrane called a patagium. The underside of the patagium is yellowish-brown. Flying squirrels do not actually fly, but rather glide using a membrane called a patagium. Males intimidate intruding males by expanding and folding their patagium and making conspicuous movements. To assist gliding, some mammals have evolved a structure called the patagium. This kite-shaped skin is known as a patagium, which is expanded for gliding. This is achieved by the patagium, skin spread out between its limbs. Slodd was a slothful, off-white parasite with large patagium beneath his arms. Species of flying squirrels possess a patagium, which is a skin membrane used in gliding. The patagium of the male is tan to bright orange with dark banding. "Yi qi" has a rather elaborate, superficially bat-like patagium in the forelimbs, unique among dinosaurs. It can leap from tree to tree using a gliding membrane called its patagium. The female's patagium has irregular markings rather than banding. It is eventually weaned around 6 months old, and leaves its mother's patagium.