Grizzly Bear Fact Sheet

Common Name:

Grizzly bear

Scientific Name:

Ursus arctos

Wild Status:

Least Concern


woodlands, forests, alpine meadows, and prairies


United States, Canada



Life Span:

20-25 years


Weight: Males, 600 lbs/ Females, 290-440 lbs; Length: 6.5 ft

Cool Facts:

  • Newborn cubs can weigh as little at 1.1 pounds.
  • Alaska has the largest population of Grizzly bears in North America. of their estimated population, about 55% are estimated to be in Alaska.
  • Not all Grizzly bears hibernate. They will only hibernate in cold areas, and can hibernate for 5-78 months.
  • They can gain about 400 pounds in preparation for hibernation.
  • Grizzly bears are solitary. Mothers will care for her cubs up to two years.


The Grizzly bears' coat varies from a blond to black color. Their coat is often grizzled, but not in every individual. They have dark brown to almost black noses. They are commonly mistaken for black bears in areas where their populations overlap, but adults are distinguishable from other bears because of the hump on their back near their neck. They also have small rounded ears and a "dished" in side profile. Their large front claws  can measure 2-4 inches in length.

Taxonomic Breakdown:

Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Ursidae Genus: Ursus Species: U. arctos ssp.

Conservation & Helping:

Brown bear populations are spread throughout three continents and is considered a conglomerate of many Grizzly bear populations. Because, of this, the IUCN Red List has the Grizzly bear listed as a species of least concern. However, compared to historical ranges, Grizzly bear populations and range have been observed to have dramatically declined. Grizzly bears are protected based on recovery areas where efforts to maintain populations are focused. In Canada, the Prairie population is protected under the Canadian Species at Risk Act. In the United States, they are listed as threatened under the U.S. Fish and Wildlife Service and protected in Northern Continental Divide, Yellowstone , Cabinet-Yaak, Selway-Bitterroot, Selkirk, and North Cascades.

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