Polar bears aren't actually white. Their color is determined by the ... Underneath all that hair, polar bear skin is actually black. The black skin readily absorbs sunlight to keep the bear ...

Polar bears aren't actually white. Their color is determined by the ... Underneath all that hair, polar bear skin is actually black. The black skin readily absorbs sunlight to keep the bear ...

She added that it is “difficult to say” if the fish-eating polar bears of millennia ago resembled their modern-day descendants with their white coats ... brown to almost black,” she said.