A viral video shows a climber struggling to breathe and speak after spending four days in the “death zone” on Mount Everest. Watch here.

A wildlife enthusiast ended up face to face with an ultra-rare top predator in the Everglades—see his video of a Florida panther here.

Biologists in Texas say they’ve discovered a new bird that they believe is a hybrid of two existing species. Researchers at the University of Texas at Austin have named the new bird a “grue jay.”  According to a press release, they believe the bird is one of the first known examples of a hybrid between [...]