EB: How closely related is the dog to the wolf? NOVA: Basically if you drop your beagle in a blender and look at the DNA it's pretty indistinguishable from a wild wolf. All dogs came from wolves.

How much they have in common with their ancestors? Or what they're really trying to tell you when they bark? Take this quiz and find out. Dogs are descended mostly from wolves, jackals ...

Wildlife officials are preparing to release as many as 20 gray wolves in western Colorado in ... led officials to recapture a pack from the wild. State of play: The state plans to capture up ...