The coats of domestic dogs are of two versions: "double" being widespread in dogs (in addition to wolves) originating from colder climates, created up of the coarse guard hair and a delicate down hair, or "solitary", While using the topcoat only. Breeds might have an occasional "blaze", stripe, or "star" https://contentorganization16150.csublogs.com/38430196/dogs-an-overview