Unmistakable, large grizzly bear prints were observed in the northern part of the park on March 9. The next day, local wildlife organization Jackson Hole Eco Tours posted a video to Instagram ...

Prehistoric humans painted images of the animals on ... the floor is covered with 150 cave bear skeletons, and its soft clay still holds paw prints as well as indentations where bears apparently ...

Grizzly bear tracks are unmistakable: huge prints in the snow, larger than a human hand, with long front claws. Grizzly tracks are bigger and squarer than black bear tracks. Around the same time ...

Officials and guides have spotted grizzly and black bears emerging from hibernation at Yellowstone National Park ...