That's because polar bear fur is transparent and hollow.When light strikes the outer fur some of it is absorbed while the rest is scattered away. The result? The fur can appear as different colors ...

A polar bear's fur isn't white. "It's sort of translucent," said Stirling. "It reflects light, so it gives the impression of ...

it can soak a polar bear's fur and persist for several weeks. It will be groomed and ingested, irritate the skin, and destroy the insulating abilities of the fur," she says. "Studies show that ...