Hmmmn. Does that make their offspring a Durer-Die wolf?
(The off-colored ones would be a Durer-Dyed Wolf.)
One thing to keep in mind; these creatures were possibly still extant during the last ice age, when men were venturing into the North American continent.
While it is untenable to suggest that men encountered dinosaurs, it is entirely possible that men had to deal with dire wolves, and short-face bears, and giant beavers, giant prairie dogs, and other things that are not dreamed of or even mentioned in your philosophies, Horatio.