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 ...

Wolf-dog hybrids are bred by crossing domestic dogs with wolves, sometimes just a few generations back. They carry physical traits and instincts that set them far apart from standard breeds. These ...

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

A young shelter dog recently became the unlikely mentor for an orphaned wolf pup at a zoo in Wichita, Kansas, and the two have since built a bond their human caretakers call the "perfect pairing." ...