The American Alligator, Alligator mississippiensis, (known colloquially as simply gator) is one of the two living species of Alligator, a genus within the family Alligatoridae. The American Alligator is native only to the Southeastern United States, where it inhabits wetlands that frequently overlap with human-populated areas. It is larger than the other extant alligator species, the Chinese Alligator.