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    The National Wildlife Federation

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    Reptiles

    Reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. These animals are most easily recognized by their dry, scaly skin. Almost all reptiles are cold-blooded, and most lay eggs—though some, like the boa constrictor, give birth to live young. Instead of possessing gills like fish or amphibians, reptiles have lungs for breathing.

    The United States is home to a diverse range of reptiles. Today these animals face threats including habitat destruction, pollution, and overexploitation. Species such as the Kemp’s ridley sea turtle and the Puerto Rican boa are currently categorized as endangered under the U.S. endangered species list.

    Northern Water Snake

    Snakes

    Limbless reptiles with long, tapered bodies

    Black Rat Snake Louisiana Pine Snake
    Northern Water Snake Puerto Rican Boa
    Rattlesnakes
    Eastern Fence Lizard

    Lizards and Crocodilians

    Long-bodied reptiles with limbs and tapered tails

    American Alligator Eastern Fence Lizard

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    Where We Work

    More than one-third of U.S. fish and wildlife species are at risk of extinction in the coming decades. We're on the ground in seven regions across the country, collaborating with 53 state and territory affiliates to reverse the crisis and ensure wildlife thrive.

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