Wolverines are a type of weasel and are the largest member of the weasel family. The scientific name of the wolverine is ‘Gulo Gulo, while it is also called carcajou, glutton, nasty cat, quickhatch, woods devil, or skunk bear in the contiguous United States. They can weigh up to 45 pounds and have a thick coat of fur that helps protect them from the cold weather. Moreover, wolverines are also very strong animals, and they are known for their aggressive territorial behavior. They have been known to kill prey much larger than themselves. If you’re ever hiking or camping in an area where wolverines live, be sure to take precautions against being attacked!

This post will tell you about these rare animals, from their physical characteristics to their habits and behavior. So if you’re interested in learning more about wolverines, read on!

Physical Characteristics

Wolverines are small, compact, and broad-shouldered. Wolverines have short legs and five toes on each foot, with sharp claws that allow them to climb trees and dig burrows. They are also proficient swimmers.

wolverine animal size to human

To survive in cold climates, the wolverine has adapted to have several layers of fur which keep them warm. Their fur is thick and oily, which helps repel moisture. They also have a thick layer of fat under their skin which helps insulate them from the cold weather.

Where Do Wolverines Live?

Wolverine populations are found in North America, Europe, and Asia. They are most commonly found in Alaska, Canada, and the Rocky Mountain states in North America. They prefer cold climates and tend to live in mountains, forests, and tundra.


While wolverines typically live between 10 and 15 years in the wild, they have been known to reach up to 20 years old in captivity.

Wolverine Range

The wolverine has been in California’s Sierra Nevada mountains and the southern Rocky Mountains for centuries. They are now also known to reside within North Cascades Range in Washington, the Northern Rockies of Montana, Wyoming, Idaho, and some parts of Oregon (Wallowa).

Wolverine Habitat

Wolverines are solitary animals that live in dens. They typically dig their dens but also use abandoned burrows of other animals. Wolverines prefer to live in areas with dense vegetation, so they can hunt and travel without being seen. Their territories can be as large as 500 square miles, and they mark their territory with urine and feces.

Wolverine Diet

Wolverines are carnivores, and their diet consists mainly of meat. They eat anything from small rodents to large animals like rabbits, deer, moose, caribou, or elk. Wolverines will also eat carrion or dead animals. In the winter, they often cache (or bury) food in the deep snow to eat later. Wolverines will also eat berries and roots when meat is scarce.

Individual wolverines have been known to travel up to 30 miles in a single day in search of food. Wolverines typically eat between 2 and 4 pounds of food per day.

Habits and Lifestyle

Wolverines are mostly nocturnal, meaning they are most active at night. During the day, they will often take refuge in dens they have dug themselves or in the abandoned burrows of other animals. Wolverines do not hibernate.

wolverine size

Wolverines are solitary animals, except for mothers with their young. Wolverines mark their territory with urine and aggressively defend it from intruders. They have also been known to scavenge food from other animals’ kills. The wolverine, like other mustelids, possesses strong-smelling scent glands that it uses to claim territory and sexual signaling.

Mating and Reproduction

Wolverines typically only come together to mate. The mating season of wolverines is late winter or early spring. After a gestation period of around nine weeks, the female wolverine gives birth to two to six kits. They are born blind and deaf, weighing only about one pound each. They rely entirely on their mother’s milk for sustenance. After about two months, the young can see and hear and begin to eat solid food.

wolverine animals

Several females raise their young until they are old enough to fend for themselves, usually around nine months. Once the kits are independent, they will establish their territories.


Wolverines are apex predators, meaning they have no natural predators. However, they are sometimes killed by humans who view them as a threat to livestock or property. Wolverines are also at risk of becoming trapped in traps set for other animals.

Features of Defense and Aggression

Wolverines are generally shy animals, but they will attack if they feel threatened or cornered. Wolverines have many features that help them defend themselves against predators or other threats, including sharp claws and teeth, powerful jaws, and an aggressive temperament. The sharp claws and teeth make them capable of inflicting severe injury. It is advisable to keep your distance if you encounter a wolverine in the wild places.

Threats to Wolverines

The International Union for Conservation of Nature (IUCN) lists the wolverine as a species of “least concern.” Threats to wolverine populations include:

Habitat Loss and Fragmentation

Habitat loss is a major threat to wolverines. Humans are destroying their habitat for development, logging, and mining. This destruction reduces the suitable habitat available for wolverines, leading to a decline in the population.

what is a wolverine animal

Habitat fragmentation caused by roads and other human development can also be a problem for wolverines. This fragmentation can prevent wolverines from moving freely between different areas, leading to inbreeding and decreasing the population’s genetic diversity.

Killing by Humans

Wolverines are sometimes killed by humans who view them as a threat to livestock or property. They also risk becoming trapped in traps set for other animals.

Climate Change

Climate change is also a threat to wolverines. As the climate warms, the wolverine’s main food sources—small mammals and carrion—are likely to decline in abundance. In addition, the melting of snow and ice in the Arctic is believed to be making it easier for predators such as wolves and bears to access the wolverine’s den sites, putting their young at risk.


The disease can also be a threat to wolverines. Canine distemper, for example, is a virus that can infect many different species of animals, including wolverines. Canine distemper can cause vomiting, diarrhea, and seizures, often fatal.

Inadequate Prey Abundance

If the abundance of small mammals and carrions decreases, it could lead to a decline in the wolverine population. This decrease could be caused by several factors, including climate change and habitat loss.

Conservation Status

pictures of a wolverine

Wolverines are protected under the Bern Convention and the Habitats Directive. They are also listed in Appendix III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which regulates international trade in wolverines and their body parts.

There are several efforts underway to conserve wolverines and their habitat. These efforts include:

  • Habitat Protection and Restoration

Some countries have established protected areas to help conserve wolverines and their habitat. In addition, habitat restoration projects are being undertaken in some areas to help improve the habitat for wolverines and other wildlife.

  • Educational Campaigns

Educational campaigns are being used to raise awareness of the importance of conserving wolverines and their habitat. In addition, these campaigns aim to reduce the persecution of wolverines and increase public support for conservation efforts.

  • Research

Research is being conducted on wolverines to help improve our understanding of these animals and their needs. This research is important for informing conservation efforts.

Final Thoughts

The wolverine is a fascinating creature that has many unique features. Despite their fierce reputation, wolverines are very shy animals that would rather avoid contact with humans if possible. Unfortunately, due to habitat loss and hunting pressure, wolverine populations around the world are declining rapidly. We need to do our part to protect these amazing creatures, so they don’t disappear from the planet altogether.

Cody Mitchell
Cody Mitchell is a pet lover and a passionate pet writer. He has worked as a professional writer for over 6 years, with a focus on creating compelling content for pet-related brands. His work has been featured in major publications. When he's not writing, Cody can be found playing with his two dogs (a labradoodle and a cocker spaniel) or cuddling his cat.

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