A snow fox has fur because they are cooled blooded. They need fur but if they did not they will not survive so the fur keeps them warm in the cooled.
snow foxes do not sleep for a long time they don't sleep at all. They have dens to sleep in at night so they rest at night. However they are flexible in there sleep.
An snow fox eats any type of rodents that they can fined they eat birds,eggs,fish,carrion, and bunny's.