Sea ice is crucial to polar bear survival because they use it to hunt their main source of food -- seals. Polar bears also use the ice as a platform to catch the seals, Archer said.

This comprehensive polar bear size comparison will show how large polar bears are compared to Kodiak bears, grizzly bears, and tigers. Find out ...

This suggests that polar bears may have lived in Scotland during the last Ice Age, says the team. The post New analysis of ...

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 ...

For Van Nest, the provincial officer, the group he came upon that day was plenty safe from a bear about 300 yards (meters) away. He said the bear was “putting on a bit of a show” for the tourists.

Genetic studies show there’s still a lot to learn about cross-species mating in the Arctic. Spotting polar-grizzly bear hybrids in the wild can be tricky. This polar bear's darker face and body ...