Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water through ...

Bone claws, oxygen-absorbing “hair,” and hands-on frog dads. Meet the hairy frog (or wolverine frog), one of nature’s strangest amphibians.

What is the world’s largest amphibian? Scientists have just come up with a new answer to a question that—one would think—might be settled by now. Broadly speaking, we already knew that the largest ...