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
System (Realm) Relationship to People Living or Extinct Comparison
NatureServe Rank CITES Appendix Identification
Distinguishing AppearanceA pronounced muscular hump appears on adult grizzlies shoulders; black bears do not have this hump. 1 Scientific NameUrsus arctos horribilis 1 Conservation Status Connections
Child Taxon Of
In Biome
Source Encyclopaedia Britannica
In Ecosystem
Source World Wildlife Fund
Source World Wildlife Fund
In the Other Atlases
Found In
Also in Geography Atlas: where this subject is found.
Also in Geography Atlas: where this subject is found.
Sources
1. Grizzly Bear (Wikipedia)
Wikimedia FoundationLead 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.
Infobox: status
G4
View the Source 2. GBIF Species API
3. Animal Diversity Web, University of Michigan Museum of Zoology: Ursus arctos (Animal Diversity Web)
Animal Diversity Web, University of Michigan Museum of ZoologyConservation Status: CITES
CITES Appendix I
Conservation Status: IUCN Red List
IUCN Red List Least Concern
Economic Importance
Brown bears have been widely sought as big game trophies and are currently subject to regulated sport hunting throughout much of their range.
View the Source Wikidata: Grizzly Bear
Wikidata Q171004, class allow-list match (w-wdresolver-0926)View 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
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