A mother polar bear stunned scientists by swimming 427 miles across open Arctic water in just nine days. Her near nonstop journey highlights the extreme physical demands polar bears now face as sea ...

Sea ice loss from climate change is causing polar bears to swim longer distances to find stable ice or to reach land, resulting in greater risk to their cubs, according to a new paper co-authored by a ...

Polar bears can swim at 6 mph. ©gentildeabreu/iStock via Getty Images Is there anything better than diving into cold water in the summertime? Polar bears love plunging into refreshing water as well.

For nine days, a polar bear mother, formally known as Bear #20741, did not stop swimming. In the vast, open water of the Arctic, where solid ice once stretched for miles, the female polar bear pushed ...