Sulphur butterflies glide across Zorrillo Canyon, hundreds of them, moving back and forth against the cerulean sky. It’s nothing short of a fairy wonderland for the scientists below. At least, that’s ...

The arrival of warmer weather means more critters will be out and about. While we may welcome the sight of more songbirds and ...

Snakes have adapted to climb trees, leap across hot sand, and even swim through water — all without arms or legs. What’s their secret? Mike Bock This corn snake, shown here at the Smithsonian's ...

If you're hiking, hunting, or just spending time outdoors in Texas, there's one sound you don't want to hear: the sharp warning rattle of a snake. And in some parts of the state, the odds of hearing ...