Magnificent Tree Frog side profile with dirt on its back.

Amphibians

Although all amphibian species depend upon water for reproduction and to keep their skin moist, some can live both in fresh water and on land. They range in size from frogs that are less than a half-inch long to giant salamanders that reach five feet in length.

an axolotl, an aquatic salamander with frilly gills and mottled greenish skin, against a white background

Axolotl

The axolotl is the Peter Pan of the amphibian world. It is a salamander that never grows up.
A newt with spotted skin on the bottom of an aquarium

Iranian Harlequin Newt

Iranian harlequin newts live in streams and pools of water that dry up after a few months.
The left side profile of a Magnificent Tree Frog.

Magnificent Tree Frog

This Australian frog has a secret weapon: a large, liquid-filled poison sac on the back of its head.
Green and Black Poison Frog standing in moss.

Poison Frogs

These tiny gem-like amphibians are incredible parents.
A large toad sleeping

Sonoran Toad

At seven inches long, the Sonoran toad is one of the largest toads in North America.