It may seem bland at first glance, but an Arctic fox's ghostly, almost-blue coat is ideal attire on the tundra. Not only does it disappear in snow and defy temperatures as low as 58 below zero, but it also changes colors for summer, letting the fox hide among rocks and plants.
Arctic foxes mostly hunt birds, rodents and fish, but even their fur can't always help them find food in the dead of winter. When out of options, they sometimes shadow polar bears to scavenge scraps from their kills. They'll also eat tundra vegetables when in season.