Aposematism refers to animals with obvious defense mechanisms, letting other predators know they're in for trouble.

A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...

Imagine a world teeming with life, but not as we know it—a planet bursting with creatures so bizarre they seem plucked ...

Discover 6 types of birds that are blue! Beyond blue jays, we dive into tree swallows, eastern bluebirds, and much more!