Black wolves, a color variant of gray wolves, roam North American forests, mountains, and tundra in packs. Their dark fur, ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. For many years, Doug Smith was satisfied with the explanation that coat color in wolves was a ...

New research shows that black wolves are more likely to survive outbreaks of canine distemper virus (CDV). Yellowstone Natural Park wolves prefer to mate with those of the opposite color in areas ...

New research from the University of Oxford, Yellowstone National Park, and Penn State, published today in the journal Science, may have finally solved why wolves change color across the North American ...