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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Remains on a small island in the Baltic Sea suggest that humans kept and cared for wolves for thousands of years before they ...

A major genetic study has found that nearly two-thirds of modern dog breeds carry measurable wolf DNA, pointing to ...

A new genetic study has found that over 64% of modern dog breeds carry measurable wolf DNA, with some breeds having as much ...