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 ...

Add Yahoo as a preferred source to see more of our stories on Google. After months of hibernating in the dark, a couple of Polar Bear cubs finally take their first steps outside for the first time. In ...

Some moments in nature are so intimate, so perfect, so breathtaking that witnessing them feels like an exclusive privilege. It is. National Geographic just shared one of those beautiful moments. It's ...

A bleak photograph shows a mother polar bear and her three cubs resting on bare ground and moss, their coats brown with mud. The image is on the shortlist for this year's Wildlife Photographer of the ...

I’m from the heat of South Texas, where warmth is constant and familiar. The idea of plunging into cold water doesn’t come naturally to me — every instinct says resist. I hesitate at the edge, toes ...

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 ...