CK-12 Foundation
Ck 12: Life Science: Lizards and Snakes
[Free Registration/Login may be required to access all resource tools.] Lizards and snakes belong to the largest order of reptiles, Squamata. Lizards are a large group of reptiles, with nearly 5,000 species, living on every continent...
Biology 4 kids
Biology4 Kids: Reptiles
Text highlighting the most common reptiles on earth. Identify the orders of Crocodilia, Squamata, and Chelonia.