She realized that she had never seen a polar bear covered in ice in any wildlife documentaries, even after they emerged from a dive in below-freezing water. “And then I thought, well ...

and spending extensive periods in water at sub-zero temperatures, it seems that the fur grease provides a natural route for ...

In seconds they’re out of the water again, running across the ice, spooked by the approach of our helicopter. Prolonged running can harm polar bears: Fat and fur insulate them so well they risk ...

Polar bears are the planet’s biggest land-based carnivores – although they actually spend most of their lives around water and ice (their Latin name means ‘sea bear’). So they’re at particular risk ...