Are caimans in the U.S.? The reptile, which is not native to the United States, is part of the same family as the well-known American alligator and American crocodile and is easily mistaken for both.

The American alligator on average grows to between 11 and 15ft long, and can weigh up to 1,000lb (454kg). The creatures are native only to the southeastern USA and China, in contrast with ...