Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

Some sanctuaries offer shelter; The Wild Animal Sanctuary in Keenesburg, Colorado, offers rescued animals a place to reclaim their wild spirit. With more than 1,200 acres of land, it’s a refuge for ...

Fatal attractions are a standard movie plotline, but they also occur in nature, with much more serious consequences. As a conservation biologist, I’ve seen them play out in some of Earth’s most remote ...

Splashes at the surface give an indication of the commotion below. Beneath the waves, a tornado of hundreds of devil rays swirl in a dizzying dance that goes on for hours. "It's amazing to see a ...