It was clear to the incredulous crew that this shivering, piteous creature was far from his true habitat. An Arctic fox is as well-equipped as any mammal to survive in an extreme northern climate. They can withstand frigid temperatures as low as –58°F, thanks in part to their compact bodies. Their muzzles, legs and ears are short, which conserves heat by minimizing exposure to the frigid air.
To further insulate, the Arctic fox will curl up into a tight round mass, with its legs and head snuggled securely under its body. If conditions get too cold, its metabolism increases to provide warmth.