Unlike humans, frogs and other amphibians don't need to rely on their lungs to breathe; their unique skin helps them exchange oxygen and drink. But how do frogs breathe and drink through their skin?

What explains the vivid colors of the strawberry poison-dart frog? Piotr Naskrecki / Minden Pictures In the animal world as in fashion, bright color makes a bold statement. The vivid hues of the ...

This article originally appeared in Knowable Magazine. From the brightly colored poison frogs of South America to the prehistoric-looking newts of the Western US, the world is filled with beautiful, ...

There are over 5,000 species of frogs worldwide—more than 100 in North America alone. Frogs show a tremendous amount of biodiversity in their calls, their coloration, their body type, and their ...