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.
Snakes
Limbless reptiles with long, tapered bodies
| Black Rat Snake | Louisiana Pine Snake |
| Northern Water Snake | Puerto Rican Boa |
| Rattlesnakes |
Lizards and Crocodilians
Long-bodied reptiles with limbs and tapered tails
| American Alligator | Eastern Fence Lizard |
Turtles
Terrestrial and aquatic reptiles with carapaces (top shells) and plastrons (bottom shells)
The National Wildlife Federation is providing resources to help families and caregivers across the country provide meaningful educational opportunities and safe outdoor experiences for children during these incredibly difficult times.
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President and CEO Collin O’Mara reveals in a TEDx Talk why it is essential to connect our children and future generations with wildlife and the outdoors—and how doing so is good for our health, economy, and environment.
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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 52 state and territory affiliates to reverse the crisis and ensure wildlife thrive.
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