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Most modern dogs have wolf DNA from relatively recent interbreeding. Here's which breeds are the most and least 'wolfish.'

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

Most dogs have some wolf DNA, scientists say. These breeds have more than others.

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

Scientists Discover Detectable Wolf DNA in Two-Thirds of Dog Breeds, Including Tiny Chihuahuas

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