Like many predators, wolverines prefer to hunt at night, but during this time of year in the arctic, the sun never sets. | National Geographic Animals

Wolves survive winter with thick double coats and physiological adaptations that keep them warm, like a special blood vessel system in their paws that minimizes heat loss. They also use behavioral strategies such as curling into a ball or sleeping together to conserve body heat, and they are well-suited for hunting vulnerable prey in the winter months. Physical and physiological adaptations Thick fur: Wolves have a dense, multi-layered coat that protects them from extreme cold. The undercoat is