Wolf DNA seems to have influenced the size, smelling power and even personality of modern dog breeds, scientists said.

The wolf DNA isn't left over from when dogs and wolves diverged; instead, it most likely came from interbreeding in the past ...

U.S. scientists analyzed the DNA of numerous modern-day dog breeds, and found that two-thirds of pet dogs have traceable wolf ...

The scientists found that 64.1% of modern breed dogs carry wolf ancestry due to genetic crossbreeding nearly 1,000 ...

A new study from two Museums of Natural History uncovered that two-thirds of dog breeds have detectable wolf DNA, from chihuahuas to Arctic sled dogs.

Scientists find wolf DNA in most modern dog breeds, revealing widespread ancestry that shaped size, behavior and adaptation.

New studies of canine genetics shed light on the diversity of dogs and our longstanding, still-evolving relationship to them.

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 ...

Genomic analysis of more than 2,700 dog and wolf genomes shows that most modern dogs carry small traces of post-domestication ...

Some massive breeds such as the St. Bernard completely lack wolf DNA, but the tiny Chihuahua retains detectable wolf ancestry ...