B ears are a type of mammal that can be found in many parts of the world. From the tiny, silly-looking sun bear to the iconic ...

Caption Different functional parts of the Greenland polar bear brain were investigated for transfer of contaminants over the blood-brain barrier. The inner regions of the brain closer to incoming ...

Polar bears range across the Arctic Ocean, in parts of Canada, Alaska ... By helping protect the polar bear, we’re helping to make sure the Arctic food chain stays healthy, for the benefit of wildlife ...

In PEOPLE's exclusive look at the new episode of National Geographic's Incredible Animal Journeys — a seven-part series narrated by Jeremy Renner — viewers get a peek at polar bear parenting.

A polar bear’s weight changes drastically throughout ... Canada, Alaska, Russia, and parts of northern Norway. In these areas, they are at the very top of the food chain, with their main threats ...