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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 ...

Two studies provide scientists with a more comprehensive understanding of how early dogs were domesticated as they migrated ...

Today’s wolves and dogs share a common ancestor. But a deeper look at their genes reveals that interbreeding since dogs were domesticated 20,000 years ago hasn’t been as rare as scientists assumed.

It says it's the world's largest registry of purebred dogs. Frenchies have been on a steady rise since they came in 11th ...

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 ...

Most modern dogs carry traces of wolf ancestry that subtly influence their behavior, appearance, and environmental adaptations.

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.