An American saltwater crocodile (Crocodylus acutus) in Banco Chinchorro biosphere reserve in Coatzacoalcos, Mexico. It is distinguishable from its cousin, the American alligator, by its longer, thinner snout, its lighter colour, and two long teeth on the lower jaw. This species is among the largest of the world’s crocodiles, with central and south American males reaching lengths of up to 20 feet (6,1 m). (Photo by J. Chauser/Alamy Stock Photo)
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