How do Arctic foxes survive in extreme cold?

Arctic foxes survive in extreme cold thanks to their thick fur, which provides insulation and changes colour with the seasons for camouflage. They have small, rounded ears and short limbs, reducing heat loss. Their fur-covered paws allow them to walk on snow without freezing. Arctic foxes also store fat during the summer and rely on scavenging or hunting small prey like rodents in winter to sustain themselves.