Are mammals amphibians

No, mammals are not amphibians. Mammals belong to the class Mammalia, characterized by traits such as hair or fur and the ability to produce milk for their young. Amphibians, on the other hand, are a separate class (Amphibia) that includes animals like frogs and salamanders, which typically have a life cycle that involves both aquatic and terrestrial phases. The two groups have distinct evolutionary histories and biological characteristics.