Polar bears are one of the most majestic, yet fearsome animals on the planet. The largest living species of bear and the largest land carnivore, the polar bear is closely related to the brown bear.

After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.

Ancient animals such as Coelacanth and Horseshoe Crab are testament to nature’s enduring ability to evolve even with countless environmental changes over time.

Why Polar Bear Sebum Is Different Polar bears are far from the only animals to have sebum in their fur. But why is it that ice will stick to greasy human hair and other animal fur and not a polar bear ...