Nano-physicist Bodil Holst's interest in polar bear fur began while she was watching a German quiz show. “I learned that polar bears are invisible in infrared cameras, meaning their fur has the same ...

DUBLIN — In the harsh Arctic environment, where polar bears regularly plunge into freezing waters to hunt seals, a remarkable thing happens: unlike your car windshield on a winter morning, their fur ...

Polar bears have a thick layer of fat below two layers of fur that help trap their internal body heat. According to Polar Bears International, these layers keep them so warm that adult males can ...

A frequent visitor to the Crystal Lake Recreation Area in California has four paws and a lot of dark-brown fur. A camper ...

Polar bears spend their days jumping from ice into water. So if they get all wet, why doesn't their fur freeze? Well, a recent study in the journal Science Advances investigated that very question, ...