In DepthEvolution

Dogs may have been domesticated more than once

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Science  03 Jun 2016:
Vol. 352, Issue 6290, pp. 1153-1154
DOI: 10.1126/science.352.6290.1153

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Summary

For years, scientists have debated where dogs came from. Did wolves first forge their special relationship with humans in Europe, or in Asia? The answer, according to a new study, is yes. Researchers report that genetic analysis of hundreds of canines—including a nearly 5000-year-old dog unearthed on the east coast of Ireland—reveals that dogs may have been domesticated twice, once in Asia and once in Europe or the Near East, although European ancestry has mostly vanished from today's dogs. The findings could resolve a rift that has roiled the canine origins community—but experts say a lot more work needs to be done to confirm them.