Wolverines

As the largest terrestrial member of the weasel family, the wolverine (Gulo gulo) commands respect. In Wapusk, the wolverine can be found anywhere from the forested southern portions to the northern tundra. The wolverine is a solitary animal that roams its habitat alone.

Wolverines are a rare but unmistakable sight in Wapusk. They appear muscular, with a pointed snout, sharp teeth, small, rounded ears and a short, bristly tail. Well adapted to life in the tundra, their dark brown, dense coat repels water. Each wolverine’s coat has unique, lighter coloration patterns on the face, neck and chest. Males are 30 to 40% larger than females, weighing 10 to 25 kg (20 to 55 lbs). Females typically weigh between 7 to 14 kg (15 to 30 lbs).

These carnivores are well adapted to the tough life on the tundra. With a ferocious reputation and sharp claws, they compete for food sources with much larger competitors like bears or wolves. Wolverines find food by scavenging or preying on small mammals (like lemmings, voles and arctic hares). They can even take down animals as large as caribou!

Wolverines are territorial and defend their own area fiercely. Despite this, their family bonds are strong. Wolverine mating partnerships are lifelong. Male wolverines overlap their territory and mate with the same two or three females. This allows males to spend quality time with their kits. Wolverines mate from late spring to late summer. Wolverines give birth to one to five snow-white kits in underground dens.

The wolverine is an elusive species, but they have been spotted occasionally on the trail cameras in Wapusk National Park. Take a look!