Alligator | |
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An American alligator in captivity at the Columbus Zoo | |
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Genus: | Alligator Daudin, 1809
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Alligator mississippiensis |
Alligator is a genus in the order Crocodilia. There are two living species: the American alligator and the smaller Chinese alligator. Together with the caimans, the gharials, and the crocodiles, they make up the order Crocodilia.
The first alligators existed about 37 million years ago.[1] However, older species of alligators have become extinct.