Not too long ago I was the guide on a wildlife-photography trip to Svalbard, an archipelago halfway between Norway’s mainland and the North Pole ... had spotted a polar bear approaching in ...

The first astronauts to enter a polar orbit around Earth chose the obvious animal to serve as their zero-g indicator — a plush white *polar* bear ... flying over the North Pole, where the ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

The black skin readily absorbs sunlight to keep the bear warm. Polar bears aren't just the ambassadors of the North Pole. They're masters at manipulating color to survive. Latest videos Polar ...