CK-12 Foundation
Ck 12: Life Science: Reptiles
[Free Registration/Login may be required to access all resource tools.] What reptiles can you name? Snakes, alligators, and crocodiles are all reptiles. Modern reptiles live on every continent except Antarctica. They range in size from...
Biology 4 kids
Biology4 Kids: Traits of Reptiles
Check out the common traits of reptiles that sets them apart from amphibians.