The animal kingdom is full of fascinating tricks for enduring sub-freezing temperatures. Birds, for example, often just take ...

Nature always has the potential to outdo human imagination. From across oceans, forests, deserts, and isolated islands, there are actual living creatures strange enough to appear mythical.

Wood frogs — Lithobates sylvaticus, also known as Rana sylvatica — live farther north than any other amphibian, even beyond ...

Each winter, Portland volunteers "taxi" Northern red-legged frogs to and from their egg-spawning ground. The service protects them from becoming roadkill on a highway. In Portland, Oregon, where I ...