How do I distinguish alligators, caimans, gavials, and crocodiles?
While most alligators, caimans, gavials and crocodiles look similar to the casual observer, there are very distinct differences in both appearance and temperament among these reptiles. Crocodiles are not too difficult to distinguish. A crocodile can be differentiated from an alligator or caiman by its prominently protruding fourth tooth on the lower jaw. With alligators and caimans this tooth is hidden inside a socket on the upper jaw. The African Dwarf Crocodile (Osteolaemus tetraspis) has an extremely short snout, and the entire animal never exceeds 6 feet.
