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Story summary
- A study by U.S. scientists published in the Proceedings of the National Academy of Sciences finds that nearly two-thirds of modern dog breeds have detectable wolf DNA.
- The study shows that wolf ancestry arose from more recent interbreeding in the last few thousand years, not only from the original domestication over 20,000 years ago.
- The Grand Anglo-Francais Tricolore hound has about 5% wolf DNA, whereas Chihuahuas carry around 0.2%.
