Birds, Dinosaurs, and Reptiles - Ask A Biologist

Reptiles Magazine 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, reptiles Reptiles are classified under four different orders, namely Crocodilia, Rhynchocephalia, Squamata, and Testudines

reptiles One of the key adaptations that permitted reptiles to live on land was the development of their scaly skin which contains the protein keratin