The Ursus arctos horribilis, commonly known as the grizzly bear, is a subspecies of the brown bear found primarily in North America. These bears are characterized by their large size, powerful build, and distinctive hump on their shoulders, which is made up of muscle used for digging. Grizzly bears typically have a mix of brown and blonde fur, and they can weigh between 400 to 1,500 pounds. Grizzly bears are omnivorous, feeding on a varied diet that includes plants, berries, fish, and small mammals. They are known for their strong sense of smell, which helps them locate food. Grizzly bears are also solitary animals, except for mothers with cubs or during mating season.