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 ... He had spotted a polar bear approaching ...

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. More from News Polar ...

It’s a big world out there, especially for polar bear cubs emerging from their dens ... an archipelago between mainland Norway and the North Pole–were fitted with GPS satellite collars.

Attention was first brought to the Sun’s strange polar vortex when Dr. Tamitha Skov posted on Twitter, sharing images taken by ... polar vortex around the north pole of our Star.