They prey on lemmings and voles and complement their diet with eggs, birds, fish, insects, algae, fruit and carcasses. They will store food in times of abundance.
In nature, 8 to 10 years and around 12 in captivity.
Breeding takes place between February and April. After a gestation period of about 50 days, the female has a litter of 3 to 9 cubs. The young are weaned 6 to 7 weeks later. Both the male and female care for the offspring.
Aside from human beings, natural predators of the Arctic fox are dogs and grey wolves. The young are often attacked by the snowy owl.ent être attaqués par le harfang des neiges.