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Story summary
- A study in the Proceedings of the National Academy of Sciences finds most modern dog breeds retain wolf DNA, from over 2,700 dogs and wolves.
- Wolf ancestry influences traits such as personality and body size.
- Free-roaming village dogs consistently exhibit wolf DNA.
- The Grand Anglo-Francais Tricolore shows significant wolf ancestry.
- Scientists say this heritage may have shaped dog evolution and relationships with humans over 20,000 years, warranting further research.
