The world’s polar bear population is projected to decline by two-thirds by 2050. A new study from the University of East Anglia suggests that polar bears are undergoing rapid genetic changes, and ...

No matter the temperature, the challenge of a plunge into icy water for a good cause is enough to get swimmers suited up this winter. Register in advance and don't look back. Those who want to avoid ...

Here’s what you’ll learn when you read this story: Polar bears are particularly vulnerable to climate change, as they rely on sea ice to hunt seals. A new study analyzed a small subpopulation of polar ...

Researchers were surprised when they spotted an additional cub with this mother polar bear. Dave Sandford / Discover Churchill When female polar bear X33991 first emerged from her maternal den in ...

Some people usher in the new year with a champagne toast, others by dutifully eating black-eyed peas, and then there are those who celebrate by diving into ice-cold water. Taking the plunge into the ...

From super-sized natural wonders and man-made marvels to some of the weirdest, creepiest and teeny-tiniest sights, we take a ...

Complex posttraumatic stress disorder (C-PTSD), or "complex trauma," has become a popular psychiatric diagnosis. Despite the fact that the diagnosis is not recognized by the American Psychiatric ...