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  3. Wolverine
Wolverine (Gulo gulo)

Mammals · Carnivora · Mustelidae

Wolverine

Gulo gulo

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

It is the largest land-dwelling mustelid and, despite its relatively modest size, has a reputation for facing down much larger predators such as bears and wolves to defend a kill.

Weight

7 kg – 28 kg

Size

65 cm – 1.1 m

Life expectancy

8 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Easy

Temperate forestTundra
16countries33parks28same family1featured routes

AI-generated images: illustrations, not photographs.

Fun facts

  • Its breeding depends critically on spring snow lasting long enough for it to dig a den.
  • It feeds on the carrion of large ungulates, supplemented by actively hunting smaller prey.
  • It lives in the boreal forests and Arctic tundra of the Northern Hemisphere.
  • comportamientoAlthough it belongs to the otter and weasel family, it has the look and strength of a small bear, and can drive wolves off a kill of their own.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Boreal forest and Arctic tundra of the Northern Hemisphere, dependent on lasting snow cover
Birth weight
~95 g at birth, in a den dug into the snow
Size at birth
~95 g at birth
Sexual maturity
1.5-3 years
Gestation / incubation
A total gestation of 120-272 days with delayed implantation (only ~35 days of active development)
Litter / clutch size
1 to 5 young per litter (most commonly 2-3)
Life expectancy in captivity
Documented record of up to 17-19.5 years

Sources consulted: Dimensions.com; A-Z Animals; NHPBS NatureWorks; Animal Diversity Web; AnAge (genomics.senescence.info); Britannica; PBS Nature; US FWS

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 33.

Related species

Other species in the catalogue with the most in common with Wolverine — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family

Keep exploring

Based on what we already know about wolverine.

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See full glossary
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The pins mark the parks where its presence is documented.

See its range on the interactive map→
SarekSweden
PadjelantaSweden
JotunheimenNorway
HardangerviddaNorway
Pallas-YllastunturiFinland
Urho KekkonenFinland
GlacierUnited States
DenaliUnited States
Wrangell-St. EliasUnited States
BanffCanada
See all 33 parks
Pine MartenLeast Concern

Pine Marten

Martes martes

SableLeast Concern

Sable

Martes zibellina

Least Concern

Least Weasel

Mustela nivalis

American MinkLeast Concern

American Mink

Neovison vison

Least Concern

Fisher

Pekania pennanti

StoatNot Evaluated

Stoat

Mustela erminea

CountriesCanada
ParksSarekSweden
TagsCarnivore
Carnivore
Nocturnal
Solitary
Temperate forest
Tundra
Mammal

Asia8

Europe5

North America3

Canada
Russia
United States
Norway
Sweden
Finland
China
Japan
Kyrgyzstan
Mongolia
North Korea
Russia
South Korea
Taiwan
Estonia
Finland
Iceland
Norway
Sweden
Canada
Greenland
United States