American Alligator – Alligator mississippiensis
Alligators inhabit most of the southern United States, with over a million believed to live in Louisiana and Florida. Alligators have an average of 75 teeth. They also average at 800 pounds when full grown and usually grow around 13 feet long. The species has survived on Earth for over 65 million years, and their typical lifespan is 50 years.