That isn’t usually supposed to happen.

Add Yahoo as a preferred source to see more of our stories on Google. Chihuahuas have about 0.2 percent wolf ancestry, according to a new study. While that chihuahua might seem about as similar to a ...

Explore how wolf DNA in dogs shapes behavior and instincts. Learn about the genetic link between modern dogs and their ...

A prominent Greek wildlife group on Friday said it had confirmed the first case of a wolf-dog hybrid in the north of the country. The Callisto group—which is currently involved in efforts to trap a ...

What’s furry, cute, and may have ancestral ties to ancient wolves? Possibly, your dog. Researchers at the New York-based American Museum of Natural History and the Smithsonian’s National Museum of ...

Those tiny, fluffy dogs walking down the street may look cute but beware — they probably have some wolf in them. That is the discovery announced on Monday by U.S. scientists, who were surprised to ...

Many dog owners may not be surprised to learn that most dogs still carry some wolf DNA in their genomes. Domestication has changed dogs dramatically from their wolf ancestors, but most do still have ...