While bunyips vary in appearance, all possess similar basic physical structures. The bunyip's head exhibits strong seal-like features, save for its shark-like jaws. Its upper torso is thick and muscular, with long, fin-like limbs. Some species even have a single, shark-like dorsal fin. The remaining portion of the body extends into a long tail. Those with fur usually only grow a short coat on the upper body in shades of pale gray, brown, or black.