The Coats of domestic dogs are of two varieties: "double" currently being typical in dogs (and also wolves) originating from colder climates, made up of the coarse guard hair in addition to a delicate down hair, or "single", with the topcoat only. Breeds can have an occasional "blaze", stripe, https://pictureframes95772.develop-blog.com/38448917/not-known-facts-about-dogs