Amphibians

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Amphibians There are about 4,700 species of amphibians. This group includes frogs, toads, salamanders, newts, and caecilians. Amphibians all have backbones. Most amphibians live part of their life in water and part on land. In fact, the word amphibian comes from a Greek word that means both lives. Most species of amphibians lay their eggs in water and begin life in water. (Some amphibians do lay their eggs on land, but these eggs are filled with water and the animal has to breathe using gills.) The young have gills, and they lack legs when they hatch. Legs come later, and then many amphibians move to the land. Like reptiles, amphibians are cold- blooded and depend on the sun for warmth. © Advanced Assessment Systems/LinkIt!™ Passage provided under license from PassageBank.com. Use and duplication is restricted to licensees only. © Advanced Assessment Systems/LinkIt!™ Passage provided under license from PassageBank.com. Use and duplication is restricted to licensees only.

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