Some frogs have evolved features so strange that scientists struggle to explain them, and a few look less like amphibians ...

Some harlequin frogs have lost their poison—and their ability to defend themselves. Scientists are on the case.

The Goliath frog is the largest frog on Earth, but its size may not be just a quirk of nature. Scientists think this giant ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Drought is a slow-moving catastrophe for most animals. Yet ...

Over generations, a small North American frog has learned how to survive in a world that's getting increasingly saltier. But ...