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Reptile is an animal that has dry, scaly skin and breathes by means of lungs. There are thousands of species (kinds) of reptiles, and they make up one of the classes of vertebrates (animals that have a backbone). Reptiles include alligators, amphisbaenians, crocodiles, lizards, snakes, tuataras, and turtles.
Amphibian is an animal with scaleless skin that usually lives part of its life in water and part on land. There are thousands of kinds of amphibians. They make up one of the classes of vertebrates (animals with backbones) and include frogs, toads, salamanders, and the wormlike caecilians.
Presented by Julia Gregory, Senior educator, Tennessee Aquarium, Chattanooga, Tennessee