Their fur is dense and silky, varying from light brown to nearly black ... across Eurasia — particularly in Siberia, where their thick, insulating fur keeps them warm in cold climates.

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 ...

HAVE you ever gotten a nasty sunburn and wished you had a thick fur coat to protect yourself ... That being said, species or individuals with light fur and thin coats, especially hairless breeds ...