(PR-inside.com) Slipping through trees or across snow, the wolf has glided into legend on paws of white, gray or'in North America'even black. This last group owes an unexpected debt to the cousins of the domestic dog, say Stanford researchers. In an unconventional evolutionary twist, dogs that bred with wolves thousands of years ago ceded a genetic mutation encoding dark coat color to their former ancestors. As a result, the Gray Wolf, or Canis lupus, is no longer just gray. The effect was more than just cosmetic: the resulting black wolves, which are found nearly exclusively in North America, seem ..
More...
More...