A new global assessment shows that the world's glaciers are melting faster in the last 10 years compared to the previous decade. Polar bears, which depend on the frozen sheets, are increasingly under ...

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.

Scientists reveal a never-before-seen species of leopard-size apex predator that lived in lush forest 30 million years ago.

The bears of Alaska's Katmai National Park are enormous by any standard, but 747 trumps them all, earning the title of Fat ...