Why did the brown bear evolve into the polar bear? Animation describing how brown bears adapted to life in the Arctic. Sam, a young tortoise, is hungry. Grandad Charlie tells him a story about how ...

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 ...

Editor's Note: National Geographic went too far in drawing a definitive connection between climate change and a particular starving polar bear in the opening caption of our December 2017 video ...

Videos captured by the cameras have not only helped scientists verify satellite collar data but have also given them more insights into post-emergence behavior. The team found that polar bear ...