The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are ...

Or that archetypical image of a wolf in silhouette, it's head thrust back as it howls attentively at the fully formed moon that hovers cold and blue in the background. For centuries, Canis lupus ...