By modeling the breaths of ankylosaurs, scientists have shown why these creatures had some of the most convoluted nasal passages ever seen.

In frigid waters, their ability to keep their bodies warm gives them an edge over sharks and fish.

A growing body of research has documented the health risks of getting certain breeds fixed early—so why aren’t shelters changing their policies?

Stunning footage documents the efforts of the World Wildlife Foundation's Black Rhino Range Expansion Project 

One last overview of autumn