Polar bears are one of the largest mammals on land; only the African elephant can tower over the polar bear in this corner of ...

After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson Bay.

The great white polar bear is the youngest and largest of the world's bear species — a mighty hunter and fierce defender of its young that's among the world's most vulnerable animals. Two-thirds of ...

“Unwashed, greasy hair made it much harder for ice to stick. In contrast, when the polar bear hair was washed and the grease largely removed it performed similarly to human hair, to which ice sticks ...