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Ancient Dog DNA Shows Early Spread Around the Globe – The New York Times

Research on fossil canine genomes is expanding and producing some surprises about the lives of dogs and humans in prehistoric times.

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Among the other findings, Dr. Larson said he found it particularly intriguing that once dogs had become domesticated, and even while they were sometimes breeding with wolves, no new wolf DNA entered their genomes.
By contrast, pigs, for example, were brought to Europe by farmers from Anatolia. But the genes of those first domesticated pigs have been completely lost, replaced by the genes of wild European boars, even though the pigs stayed domesticated animals.
While dogs do interbreed, no new wolf…

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