Mange is a disease caused by mites in the hair follicle of the animal . It is common with foxes and in some cases black bear .It is spread through contact between animals . Often they use the same den or feed on large dead carcasses during the winter months If not treated the animal generally dies .It is one way that Mother Nature controls over population .Rabies, distemper, parvo ,and internal parasites are others .Some of these diseases came be contacted by people or their pets . It turns my stomach to see and animal up close with this type of diease