1 Multiple sclerosis (MS) is a disease that causes demyelination (disruption of the myelin that insulates and protects nerve cells) of spinal nerve and brain cells.  Although the exact case is unknown, multiple sclerosis is considered to be an autoimmune disease.
The skunk is not a rodent. They belong to the family Mephitidae and the order Carnivora which does not include rodentia. They are sometimes placed in the family Mustelidae (weasels) but have been discovered to be less related than was thought.
The average life span of skunks is around 2 to 3.5 years, although they can occasionally live up to 7 years in the wild. Skunks often den in burrows. They will often use abandoned burrows dug by ground squirrels, foxes, or coyotes and will enlarge them if necessary.