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 ...

New research led by scientists at the American Museum of Natural History and the Smithsonian's National Museum of Natural History reveals that the majority of dogs living today have low but detectable ...

A new study published in Proceedings of the National Academy of Sciences has uncovered that two-thirds of dog breeds have detectable wolf DNA, from chihuahuas to Arctic sled dogs. Studies on wolves ...

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 ...

Although wolf-canine interbreeding has been considered extremely rare, the latest research shows that many present-day canines carry a small amount of wolf genes. A surprising study reveals that there ...