Arctic Fox

Vulpes lagopus

Arctic fox

Portrait of an arctic fox in winter. Photo by Pierre Cornay Photography / iStock.com.

Imagine spending every day in the winter in below freezing temperatures, being pushed around by strong wind gusts. What would you need to stay warm?

For the arctic fox, staying warm in the Arctic tundra, in temperatures as low as -50°C (-58°F), means having dense fur, a nice thick layer of fat, and a compact body to retain heat.

Arctic foxes, also known as polar foxes, white foxes or snow foxes, are about 60 cm (2 ft.) long, less than 30 cm (1 ft.) tall, and weigh up to about 9 kg (20 lb.). That’s about the size of a large house cat.

They have bushy tails that they can wrap around themselves for extra warmth while they sleep.

Arctic fox

Arctic foxes wrap their tails around themselves for extra warmth. Photo by Alexey_Seafarer / iStock.com.

Arctic foxes also have fur on the bottom of their feet. This helps them conserve heat and provides traction so they don’t slip on the ice.

Changing Colors for the Seasons

Arctic foxes change colors based on the season. In the summer, most arctic foxes have brown fur.

Arctic fox in brown summer coat

An arctic fox in its brown summer coat. Photo by Steve Hillebrand / U.S. Fish and Wildlife Service.

As the days shorten, the decrease in daylight triggers their brown summer coats to shed and their white winter coats to grow in.

Their white coats blend in with their snowy surroundings.

But some arctic foxes have a blue color morph. These “blue foxes” are a dark charcoal color year-round. In the winter, their coats are still charcoal-colored, but a somewhat lighter version.

Blue morph arctic fox

A blue morph arctic fox in Iceland. Blue morph arctic foxes have charcoal-colored fur year round. Photo by Dgwildlife / iStock.com.

Blue foxes can often be found on the Aleutian and Pribilof Islands where the coastlines are snowless. They are also common in Iceland.

What Arctic Foxes Eat

Arctic foxes are meat-eating hunters and opportunistic eaters. They primarily hunt for small rodents called lemmings. However, they also eat other rodents, fish, birds, insects, eggs, and carrion (dead animals).

Sometimes they follow larger predators, like polar bears or wolves, to eat their leftovers. Although they generally eat meat, arctic foxes will also eat berries and seaweed.

Arctic fox eating

Arctic fox with its prey walking on the rocks in Svalbard, Norway. Photo by Wirestock / iStock.com.

Arctic Fox Dens

Arctic foxes make their home in a den they dig out of the earth or snow. They may also create their den under a pile of rocks.

Every den will always have at least two entrances. They move their den throughout the year because they travel to find food.

Arctic fox kits outside their den

Arctic fox kits outside their den in Svalbard, Norway. Photo by Jiri Hrebicek / iStock.com.

Arctic Fox Reproduction

In the spring and summer, arctic foxes live in family groups, consisting of a male, a female, and their kits.

Sometimes another female without her own kits will help raise kits in their group. Other times, several females will live together in a large den.

Usually, female arctic foxes give birth to about 5-8 kits, though there could be as many as 15 kits in a litter. The kits are dark brown with white facial markings.

They are weaned when they are 2-4 weeks old.

Arctic fox pup

Arctic fox kit. Photo by Mike Boylan, U.S. Fish and Wildlife Service.

Predators of the arctic fox include polar bears, wolves, grizzly bears, wolverines and golden eagles. They are also hunted by humans.

The typical lifespan for an arctic fox in the wild is 3-6 years though they could live up to 10 years.

Conservation Status

The arctic fox is considered a species of least concern according to the IUCN Red List. However, they can become at risk if pollution and climate change continue to affect their habitat.

What You Can Do to Help

You can help by making lifestyle changes that help curb pollution and global warming. You can also symbolically adopt an arctic fox through WWF.

Arctic Fox Range

Arctic fox range map

Arctic foxes live north of the tree line in the Arctic and alpine tundra, coastal areas, and on ice floes.

More Arctic Fox Resources

Quick Fact Sheet

Common Name(s): Arctic Fox, Polar Fox, White Fox, Snow Fox

Scientific Name: Vulpes lagopus

Animal Type: mammal

Size: 60 cm (2 ft.) long and 30 cm (1 ft.) tall

Weight: 9 kg (20 lb.)

Lifespan: Up to 10 years

Conservation Status: Least Concern

About the Author

P.A. Smith is a middle school Language Arts teacher. He is also a contributing editor of My House Rabbit.