The grizzly bear (Ursus arctos horribilis) is also known as the North American brown bear. It is the third-largest bear belonging to the family Ursidae, which includes eight species of bears.

Also known as the North American brown bear, the grizzly bear is a powerful predator that can weigh up to 800 pounds. (Photo: Paul Hamilton/Can Geo Photo Club) The ends of the hairs on grizzly bears’ ...

Every year, at the end of summer, grizzly bears in Alaska wait for spawning salmon to return in their thousands. Their physiology changes and they become eating machines, entering a state called ...

Yellowstone National Park this week announced that grizzly bear tracks have been discovered by employees, signaling the start of the 2025-26 bear season. “It’s that time of year when bears are ...