According to LiveScience, American alligators can live up to 50 years in the wild. The American alligator can grow to lengths of up to 20 feet and weigh up to 1,000 pounds. On average, male alligators reach 11 feet, while females approach 8 feet.
Alligators rarely attack humans unless provoked or when guarding a nest. Their diet includes a variety of fish, birds and mammals. Alligators are on occasion cannibalistic, particularly when a larger alligator finds a juvenile. Nests are constructed by females using sticks and rotting vegetation. Up to 50 eggs are laid, with the sex of the developing embryos determined by ambient temperature.