The bear moves like a silhouette across the landscape, its black fur blending in with the dark rocks and dusky woods. A white-coated black bear gorges on salmon roe to pack on fat for the winter.

Polar bears' greasy fur oil helps them repel ... wonder what was so special about polar bear grease, said Carolan, so they brought in experts in oil and fat and got new samples of polar bear ...

A polar bear! Its thick fur helps it to hide and keep warm in the ... A seal sitting on the ice! They have lots of fat under their skin that keeps them warm. A penguin off to look for food.

Polar hair hair oil has natural non-stick qualities that help these animals from getting stuck on ice, says PhD candidate Julian Carolan. (© Kieran McIver / Polar Bears International) Polar bears' ...