Silver fox - choose a jigsaw puzzle to solve

The silver fox is a melanistic form of the red fox (Vulpes vulpes). Silver foxes display a great deal of pelt variation: some are completely black except for a white coloration on the tip of the tail , some are bluish- grey , and some may have a cinereous color on the sides. Historically, silver foxes were among the most valued furbearers, and their skins were frequently worn by nobles in Russia , Western Europe , and China . Wild silver foxes do not naturally reproduce exclusively with members of the same coat morph and can be littermates with the common red variety, though captive populations bred for their fur and as pets are almost exclusively mated with members of the same color . The silver fox's long outer hair can extend as much as two inches (5 cm) beyond the shorter underfur on different parts of the fox's body, particularly under the throat, behind the shoulders , on the sides and the tail . The hair of the underfur is brown at the base, and silver grey tipped with black further along the follicle. The hair is soft, glossy and was once reputed to be finer than that of the pine marten. The uniformly blackish brown or chocolate colored underfur, which is unusually long and dense, measures in some places two inches and is exceedingly fine. It surrounds the whole body even to the tail , where it is a little coarser and woollier. The fur is shortest on the forehead and limbs, and is finer on the fox's underbelly.