2021-02-25

Did dogs follow the first immigration to North America? Revealing the bones of the oldest domestic dog in America

By yqqlm yqqlm

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Did dogs follow the first immigration to North America? Revealing the bones of the oldest domestic dog in America

According to reports, it is generally believed that at the end of the Ice Age, about 30,000 to 11,000 years ago, humans arrived in North America through the Bering Strait from Siberia. area. Since ancient times, dogs have been closely related to human activities, and studying the genes of dogs can provide the best time for human settlement history.

A new study conducted by Buffalo University in New York, USA, analyzed the mitochondrial DNA of bones found in southeastern Alaska. The research team originally thought it was a bear bone, but after further inspection, it was discovered that the bone was part of a dog’s femur. The dog lived in this area about 10,150 years ago and lived there before European dogs arrived in the Americas. Of dogs have only a common genetic pedigree.

Did dogs follow the first immigration to North America? Revealing the bones of the oldest domestic dog in America(1)

Buffalo University and South Dakota State University Evolutionary biologist Cecilia Lindqvist said: “Because dogs are helpers of human settlements, our data provides assistance not only in terms of time, but also in terms of early immigrants and the location of dogs’ entry into the American continent. ”

Linquist said that this study, published in the Biological Science Edition of the Royal Society Report, found that it supports the theory that humans arrived in North America from Siberia. Linquist said: “Southeast Alaska may have been an ice-free stop. Now according to the dog (skeleton), we believe that early human migration through this area may be more important than previously suspected.”

Reported that Linquist stated that her research found that supporting the theory that dogs actually migrated to North America with the first wave of immigrants. She also said: “We also have evidence that the ice sheets on the coast began to melt at least about 17,000 years ago, but the inland corridors will not pass until about 13,000 years.”

“And genetic evidence It shows that it seems more likely that the first wave of Americans took the coastal route more than 16,000 years ago. Our research also shows that the dog bones we found along the coast are the offspring of dogs raised by humans who participated in the first wave of migration.” Linques Specially pointed out.