American Alligators inhabit Southern USA and Central America, and it can be found in rivers, lakes and swamps. These creatures are concentrated near banks, and at times, they get out of the water to bask in the sun. Alligators are large predators, reaching 8-15 feet in length and weighing up to 400 lbs. Alligators have a very strong protective horny coverage, and their jaws count 80 teeth, which become promptly replaced, should the animal lose some.