THE CROCODILESCrocodiles are found in Australia, tropical Africa, Asia, and in parts of the Americas. The largest is the saltwater crocodile of southeastern Asia, with a length of up to 9 m (30 ft). While weighing up to a ton, they are capable of rapid movement. When crocodiles swim or float along the surface of the water, they expose only their eyes, nostrils, flat tail, and toes. Most crocodiles hunt at night and bask through the day. Broad-fronted crocodiles usually feed on animals that venture too near; while gharials, specialized narrow-snouted crocodilians, eat mostly fish. You may be surprised to learn that crocodiles chirp much like a bird. (Listen and see for yourself.)