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Study shows domesticated dogs have been in N. America for 10,000 years

A re-analysis using modern equipment of three dog skeletons found decades ago in Illinois shows that domesticated dogs have been on the continent for at least 10,000 years. Despite the finding, a 5,000-year gap exists between archeological evidence of human and domesticated dog presence in North America, which could mean that dogs arrived during later migrations, although it's possible they were here earlier and evidence simply has not been found.

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