Arctic Fox

Vulpes lagopus · Mammals

Arctic Fox, looking back

Iceland, 27 December 2023

An Arctic Fox stopped, turned, and entirely unbothered on the snow in southern Iceland - which is common here, where they have been protected in some areas for decades and were never hunted by anything on four legs. It is an animal of the whole Arctic, and Iceland is the southern edge of its world.

The proportions are the adaptation. Short muzzle, short legs, small round ears, compact body: every projection is reduced, because anything that sticks out loses heat. Compare a red fox, built long and lean for a warmer climate, and the difference is obvious.

Arctic Fox, stalking low

Iceland, 27 December 2023

An Arctic Fox with its body dropped low, moving straight toward the camera across the snow in southern Iceland, the low winter sun turning the snow around it pale blue. This is a fox of the open tundra and snowfield, hunting alone in the coldest months.

Arctic foxes hunt largely by sound in snow like this, pinpointing anything moving under the surface before ever seeing it, and then pouncing straight down through the crust. A stalking posture like this one is as much about listening as looking.

Arctic Fox

Iceland, 27 December 2023

An Arctic Fox on the move across the snow in southern Iceland, nose down, which is how you almost always see them. They live on the coast and the tundra right round the Arctic, and in Iceland they are the only land mammal that arrived on its own.

Iceland has no native rodents, which matters enormously. Everywhere else in its range the arctic fox lives on a boom-and-bust cycle driven by lemmings; here it never had that option and became a generalist instead. Coastal foxes work the strandline for whatever the sea leaves - carrion, seabirds, eggs, washed-up fish - and inland ones take ptarmigan and geese. They cache heavily in autumn against a winter that offers nothing.

Arctic Fox below the ridge

Iceland, 27 December 2023

An Arctic Fox paused on a snow slope in the south of Iceland with a sunlit peak filling the background. Iceland's arctic foxes are the country's only native land mammal, there since the last ice age, and the interior snowfields are where the white ones live.

The white winter coat is the less common of the island's two colour forms. Most Icelandic foxes are the dark "blue" morph, which stays brown year-round and dominates on the coast, where a white coat is no use against black sand and rock. A white fox is a fox of the interior.

Arctic Fox in the snowfield

Iceland, 27 December 2023

An Arctic Fox looking over a drift on the south coast of Iceland in December, and only visible because of the eyes and nose. Arctic foxes live right round the top of the world, on the tundra and sea ice, and Iceland's are the country's only native land mammal, walking in over the ice at the end of the last glaciation.

This is the problem with photographing them in winter: a white fox on old snow is genuinely hard to see even when you know exactly where it is. The camouflage works just as well against the things that hunt it - which in Iceland means nothing at all, since there are no native land predators. It evolved the coat somewhere else.