What functional purpose does the heavily plumed tail serve when the dog is resting in extreme cold?

Answer

It can be wrapped over the nose and face for warmth

The tail is functionally important as it can be used to wrap over the dog's nose and face when resting, offering extra warmth in severe cold.

What functional purpose does the heavily plumed tail serve when the dog is resting in extreme cold?
appearanceDogbreedphysicalMalamute