The Fluffiness of the Arctic Fox
This small fox is a native of the Arctic tundra biome, which has the most brutal cold temperatures of the area, and this cute white fox is very well adapted to this cold environment. The impressive thing about these foxes is their thick fur that keeps them warm during the winter, and it protects them from predators by camouflaging in the snow, making them invisible. On the coldest nights, to keep themselves warm, they curled up tightly, hiding their legs behind their very fluffy long tail. When they curled up like that, it gives them a smaller surface area to volume ratio and keeps them insulated.
Arctic foxes do not need to hibernate like other animals because of their fur’s thickness, but they preserve fat by being less active in the coldest winter. They start to build up the fat around the fall to the point of increasing their body weight up to 50%, giving them enough energy to survive the winter when food is harder to find. Their diet consists of hunting small animals like lemmings, ringed seal pups, voles, fish, seabirds, and waterfowls. They also love carrion, berries, some insects, and seaweed to have a more balanced diet.