Smithsonian National Museum of Natural History, North American Mammals
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  Carnivora · Mustelidae · Gulo gulo
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Gulo gulo


Order: Carnivora
Family: Mustelidae

Image of Gulo gulo
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Conservation Status: Least Concern.

Wolverines are widely distributed in the northern reaches of both hemispheres. In North America, they occupy remote habitats from the high mountainous interior of the Rockies to Arctic coastal tundra. They are solitary wanderers who specialize on larger vertebrate prey. They usually feed on small-to-medium size mammals, but have even been known to take down caribou, and will eat carrion. Wolverines use large home ranges of 100 to 600 square km. Males are larger than females, and their ranges are larger; a male will exclude all other males from his range, but his territory may overlap with that of several females.

Also known as:
Glutton, Stink-bear, Little Bear, Carajou

Sexual Dimorphism:
Males are 25%-30% heavier than females.

Range: 650-1,050 mm

Range: 12.7-14.1 kg males; 8.3-9.9 kg females


Linnaeus, C., 1758.  Systema Naturae per regna tria naturae, secundum classis, ordines, genera, species cum characteribus, differentiis, synonymis, locis, Tenth Edition, Laurentii Salvii, Stockholm, 1:45, 824 pp.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Gulo gulo

Image of Gulo gulo
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Skull of Gulo gulo
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