How much weight can a polar bear lose before it’s too late?” That’s the question plaguing researchers after a remarkable ...

Polar bear fur isn't really white -- it's transparent and covers up black skin. Here's why they look white when you see these ...

Polar bear populations studied in Svalbard, the Norwegian archipelago on the Barents Sea, were found to have up to a 10% loss in genetic diversity over a 20-year period, which correlated with a ...

A polar bear in the Arctic in 2021. Studies of polar bears are showing an emerging battle against pathogens many bears have not experienced previously. (Ekaterina Anisimova/AFP/Getty Images) ...

What’s new At least two populations of polar bears in the high Arctic are developing paw injuries, possibly because of shifting sea ice conditions in a warming environment, according to a new ...

Polar bears are spending more time on land as sea ice shrinks. U.S. Geological Survey As the planet heats up, polar bears are being exposed to more parasites, bacteria and viruses, likely through ...