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The Europeans who colonized America since the fifteenth century decimated not only the native populations, but also the domestic dogs that inhabited the continent. That's what a group of scientists say after extensive research on archeology and genetics.
The oldest dogs on the American continent date back to 9,900 years, about 6,500 after the arrival of the first humans. . A team of 50 researchers badyzed DNA samples from 71 dogs found in North America and Siberia and genetically compared them to modern dogs.
The result, published Friday, 6, in the journal Science, confirms with a degree of unprecedented certainty that American dogs have arrived through the Bering Strait, the same road of humans. These dogs have lived for millennia with their owners until they are attacked in a few centuries with the arrival of Europeans.
The DNA of modern American dogs has nothing in common with the elders, who descend dogs from eastern Siberia. "It's amazing to see that a dog population that has been living in many parts of the Americas for thousands of years and that was an integral part of native cultures has disappeared so quickly," said Dr. Lead author, Lawrence Frantz, an expert in genetics. Queen Mary University in London
Possible reasons include illness, cultural persecution or the desire of Europeans to raise their own puppies. But the speed of disappearance surprised the researchers. Modern Labradors and Chihuahuas have Eurasian roots introduced to America between the fifteenth and twentieth centuries, wrote archaeologist Angela Perri of the University of Durham in England.
The study is an important but not final step in the understanding of canine evolution. "The history of American dogs has just been discovered," said Linda Goodman of Stanford and Elinor Karlsson of the University of Mbadachusetts in the article. (N, f) = n (n) = n (n) = n) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n .callMethod?
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