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Grizzly Bear

Mammals

The grizzly bear is a large subspecies of brown bear found across parts of Alaska, western Canada and the northwestern United States, distinguished by a pronounced shoulder hump of muscle, long claws adapted for digging, and grizzled fur tips that give it its common name. It is an opportunistic omnivore with a varied diet that shifts seasonally between grasses, roots, berries, insects, fish such as salmon during spawning runs, and occasional predation on large mammals including elk and moose calves. Grizzlies require vast home ranges and are generally solitary except for mothers with cubs, entering a den for winter dormancy in colder parts of their range where food becomes scarce. Once found across much of western North America, the grizzly range contracted sharply after widespread hunting and habitat loss following European settlement, and populations in the contiguous United States remain federally protected. Alaska and parts of Canada retain large, healthy grizzly populations, and cautious recovery efforts continue in some of the former U.S. range.

Facts
Classification
Diet
Omnivore 1
System (Realm)
Terrestrial 2
Living or Extinct
Yes 2
Identification
Distinguishing Appearance
A pronounced muscular hump appears on adult grizzlies shoulders; black bears do not have this hump. 1
Scientific Name
Ursus arctos horribilis 1
Connections

Child Taxon Of

Ursidae, Taxa
Source Catalogue of Life

In Biome

Source Encyclopaedia Britannica

In Ecosystem

Source World Wildlife Fund
Source World Wildlife Fund
In the Other Atlases
Sources
1. Grizzly Bear (Wikipedia)
Wikimedia Foundation
  • Lead section, first sentence
    The grizzly bear (Ursus arctos horribilis), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America.
  • Classification section, comparison with black bears
    A pronounced muscular hump appears on adult grizzlies' shoulders; black bears do not have this hump.
View the Source
2. GBIF Species API
GBIF Species APIView the Source
Encyclopaedia Britannica
Encyclopaedia Britannica, Inc.In Biome: Temperate Coniferous ForestView the Source
Catalogue of Life
Species 2000 & ITIS Catalogue of LifeChild Taxon Of: UrsidaeView the Source
World Wildlife Fund
World Wildlife Fund
  • In Ecosystem: Pacific Northwest Temperate Rainforest
  • In Ecosystem: Yellowstone
View the Source
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