There are seven species of amphibian which live in the ... Frogs are amphibians that live in freshwater ponds and lakes. Frogs have smooth skin, no tail, and strong, webbed feet that they use ...

Frogs’ croaks and ribbits often echo through the night when the nocturnal species of these amphibians ... peeks its head out of the waters of a pond in Philadelphia.

Researchers from the US studied the plasticity in growth and development of wood frog larvae in response to the emerging ...