American alligator (Alligator mississippiensis) in Big Cypress, Florida. It inhabits freshwater wetlands, such as marshes and cypress swamps from Texas to North Carolina. It is distinguished from the American crocodile by its broader snout, with overlapping jaws and darker colouration, and is less tolerant of saltwater but more tolerant of cooler climates. (Photo by Viktor Posnov/Getty Images)
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