Ancient DNA reveals North America's first dogs came from Siberia, not local wolves
By
Bruce Bower
Summary
An analysis of ancient dog DNA suggests that North America's first dogs arrived with humans crossing a land bridge from Siberia around 10,000 years ago or earlier. These early American dogs descended from a Siberian ancestor, not from North American wolves as previously thought. The study, published in Science, also found that genetic traces of these ancient dogs have nearly disappeared from modern dog populations, likely due to European colonists selectively breeding their own dogs starting around 500 years ago.
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Key quotes
· 3 pulledThose early American dogs derived from a Siberian ancestor, not North American wolves as some researchers have presumed.
Genetic traces of ancient American dogs have nearly vanished from present-day pooches, possibly because European colonists selectively bred their own dogs starting around 500 years ago.
North America's first dogs arrived with humans who crossed a land bridge from Northeast Asia around 10,000 years ago or earlier.
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