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.
Limbless reptiles with long, tapered bodies
|Black Rat Snake||Louisiana Pine Snake|
|Northern Water Snake||Puerto Rican Boa|
Lizards and Crocodilians
Long-bodied reptiles with limbs and tapered tails
|American Alligator||Eastern Fence Lizard|
Terrestrial and aquatic reptiles with carapaces (top shells) and plastrons (bottom shells)
|Alligator Snapping Turtle||Eastern Box Turtle|
|Green Sea Turtle||Hawksbill Sea Turtle|
|Kemp's Ridley Sea Turtle||Leatherback Sea Turtle|
|Loggerhead Sea Turtle||Olive Ridley Sea Turtle|
|Sea Turtles||Spiny Softshell Turtle|
Some of America's most iconic wildlife live in or migrate through the Arctic National Wildlife Refuge.Read More
Take the pledge to connect with nature and wildlife by camping anytime, anywhere between now and October 31.Read More
Attack on Antiquities Act threatens America's public lands legacyRead More
What started as a cartoonist's vision is now America's oldest, largest conservation organization.Read More
You don't have to travel far to join us for an event. Attend an upcoming event with one of our regional centers or affiliates.