Grizzlies on the loose! In this clip, watch grizzly bears running all over the place in Alaska's Grand Teton National Park!

Polar bears are one of the largest mammals on land; only the African elephant can tower over the polar bear in this corner of ...

It spans from the earliest days of grizzly bear biology in the United States (a field pioneered by the famous Craighead ...

What complicates matters even further is that some experts recognize several North American subspecies, while others ...

In an effort to minimize the deadly risks to grizzly bears living along a 206-mile stretch of railroad tracks spanning ...

Meet the largest carnivore on Earth: the great Kodiak bear. Travel to Alaska's Kodiak Island where 4,000-foot mountains rise up along hundreds of miles of jagged coastline. Hike these ancient ...

Montana's grizzly bears at risk from train collisions near Glacier National Park - but a new plan could change that.

Bart was an Alaskan Kodiak bear born on January 19 ... he appeared in the TV series The Life and Times of Grizzly Adams playing Adams' companion bear, Ben, as a cub. After reaching adulthood ...

Animals, like humans, are experiencing the effects of climate change, with many species at risk of extinction. The good news is that some animals have been showing signs of adaptation and are changing ...