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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 ...

When scientists in Canada came across a female polar bear with two cubs in the fall, they made an unusual discovery: One of the young was not her own offspring but instead a rare documented example of ...

Researchers in northern Canada have observed a rare case of polar bear adoption, capturing video footage of a wild female bear caring for a cub that was not her own. "Cub adoption is relatively rare ...

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 ...

POWELL, Ohio -- An 8-week-old polar bear cub at an Ohio zoo is doing well after being taken care of by staff when her mother stopped caring for her. The staff at the Columbus Zoo and Aquarium removed ...

Regular folks who care about wildlife generally know that climate change is bad for polar bears, but they have only vague ideas about the mechanics of it. We picture polar bears floating on ice floes ...

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 ...

"It's just nice to know that the bears are looking out for each other," said Evan Richardson, one of the researchers A mother polar bear in Northern Canada appears to have "adopted" a cub that is not ...