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It is from a greek word.
I believe they can live on land or in water. Generally speaking, yes. The word can be used in many ways. An airplane which can take off and set down on land or water is called an amphibian. Technically, amphibians are a class of vertebrates which include frogs and salamanders, distinguished by cold blood and a three chamber heart. They are born in water and breathe water, and they move to land after they grow. They may still live mostly in water after that, but they will breathe air instead. Thus, it could be argued that we are all amphibians because we spend the first part of our lives in a sack of water.

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10y ago

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