Polar bears depend on frozen ocean surfaces more than any other land predator. The ice functions as a platform where they hunt seals, their primary source of energy. Bears often wait beside breathing ...

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 ...

Polar bears are the poster children of climate change—and for good reason. These giant bears hunt, mate and spend their days hanging out on Arctic sea ice, which is rapidly disappearing as the climate ...