Native American dogs didn't breed into European lines--they went extinct, according to a new study by 71 biologists and archaeologists. The closest surviving bit of DNA is a sexually transmittable cancer that can be traced back to a dog in Siberia ~8000yrs ago - discu.eu

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Native American dogs didn't breed into European lines--they went extinct, according to a new study by 71 biologists and archaeologists. The closest surviving bit of DNA is a sexually transmittable cancer that can be traced back to a dog in Siberia ~8000yrs ago http://science.sciencemag.org/content/361/6397/81 15 comments 6/7/2018 science