wolverine

The wolverine (Gulo gulo) is the largest terrestrial member of the weasel family (Mustelidae) and one of the most powerful carnivores relative to its size. Stocky, muscular, and heavily furred, wolverines are well adapted to harsh northern environments, with broad paws that function like snowshoes and strong jaws capable of crushing frozen carcasses and bones. Adults typically weigh between 9 and 25 kg and possess a dark brown coat with lighter side stripes. Wolverines are solitary and wide-ranging scavenger-predators, feeding on carrion, small mammals, birds, and occasionally larger prey such as deer or caribou. They occupy enormous territories—sometimes hundreds of square kilometers—and are known for their endurance and ability to travel long distances through deep snow. Although still widespread across northern Eurasia and North America, the species occurs at low densities and depends on remote wilderness areas with minimal human disturbance. Climate-driven loss of snowpack, increasing development in northern landscapes, and historical overharvest have caused declines in parts of its range, making conservation of large intact ecosystems essential for the long-term survival of this resilient but vulnerable carnivore.