Frogs, turtles, and more! You may have heard of a flying squirrel, but what about a flying snake? Watch a snake and a lizard "fly" through the trees.

Amphibians are cold-blooded vertebrates (vertebrates have backbones) that don’t have scales. They live part of their lives in water and part on land.

Reptiles are cold-blooded vertebrates. (Vertebrates have backbones.) They have dry skin covered with scales or bony plates and usually lay soft-shelled eggs.

Mexican axolotl (pronounced ACK-suh-LAH-tuhl) salamanders are amphibians that spend their whole lives underwater. They exist in the wild in only one place—the lake complex of Xochimilco (pronounced SO-chee-MILL-koh), a network of artificial channels, small lakes, and temporary wetlands that help supply water to nearby Mexico City’s 18 ...

Mammals include humans and all other animals that are warm-blooded vertebrates (vertebrates have backbones) with hair. They feed their young with milk and have a more well-developed brain than other types of animals.

Bullfrogs live in freshwater ponds, lakes, and marshes. The male bullfrog's call is deep and loud. Jug-o-rum, jug-o-rum, it calls. Some people think it sounds like a cow mooing, which is why the frog has "bull" in its name. Walking through a marsh or near a pond, you might hear a whole chorus of these calls as male bullfrogs let other bullfrogs know where their territory is. …

No matter their differences, all chameleons have a prize pair of eyes. Their peepers can move in two different directions at once, giving the lizards a panoramic view of their surroundings. This eye-popping reptile really knows how to scale up the cool factor.

Geckos are reptiles and are found on all the continents except Antarctica. These colorful lizards have adapted to habitats from rain forests, to deserts, to cold mountain slopes. Over a long period of time, geckos have developed special physical features to …

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Gila monsters have venom in their saliva glands that paralyzes prey! Learn more amazing facts about these amazing creatures in this video from National Geographic Kids.