American Alligator; photo by User:Postdlf on Wikipedia (use permitted with attribution / share alike: CC BY-SA 3.0).
Official State Reptile of Mississippi
Mississippi designated the American alligator as the official state reptile in 2005 (the alligator is also a symbol of Louisiana and Florida). All State Reptiles
The American alligator (Alligator mississippiensis) is native to the southeastern United States. The name "alligator" comes from the Spanish "el lagarto" (the lizard). After surviving nearly unchanged since the time of the dinosaurs, and having virtually no natural predators as adults today, alligators were headed for extinction only 20 years ago due to intense hunting by humans. Protecting the species and alligator habitats has allowed the status to be changed from endangered to threatened.
Alligators are an important part of their ecosystem - they control the population of prey species, create peat through their nesting activities, and benefit several other species with alligator holes and nests (including the Florida red-bellied turtle which incubates its own eggs there).
A typical male alligator reaches 13-14 feet in length and can weigh over 600 pounds (there are unconfirmed reports of alligators over 16 feet). Immature alligators have yellow cross-bands on a black background for camouflage. Adults can be long and thin or short and stocky.