A close cousin to the Crocodile. It eats meat in zoos. It is a reptile and is a good swimmer and is very agile. It lives in water such as lakes ,swamps, rivers and rarely oceans. The largest alligator in prehistoric times was Deinosuchus. Today alligators grow to 14–16 feet can grow to 21 feet the largest alligators can grow up to 26 feet.