Class Amphibia: ectothermic vertebrates with permeable skin and, typically, a life cycle that begins in water and moves to land: frogs, toads, salamanders and caecilians. Excludes reptiles, whose scaled, less permeable skin lets them live fully independent of standing water.
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1. Wikipedia: Amphibian
WikipediaAmphibian, Characteristics sectionQuote, Amphibian, Characteristics section
Most amphibians lay their eggs in water and have aquatic larvae that undergo metamorphosis to become terrestrial adults.
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