Amphibia
(am-fĭb′ē-ă)
[Gr. amphibia (zōia), (animals) living a double life]
A class of cold-blooded tetrapod vertebrates that live on land and in water and includes frogs, toads, and salamanders. Amphibians breathe through gills during their aquatic larval stage but through lungs in their adult stage.
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