Grouping of all living beings with more or less complex organs, with which they move about and feed themselves; the body of knowledge about them.

AMPHIBIANS

Four-limbed vertebrates with soft smooth moist skin, usually found in water in the larval stage and on land in the adult stage.

frog

Cold-blooded freshwater amphibian with smooth moist skin and powerful back legs for hopping and swimming.

There are about 4,000 species of amphibians divided into three main groups, depending on whether or not they have a tail and limbs.

There are about 4,000 species of amphibians divided into three main groups, depending on whether or not they have a tail and limbs.