Word: amerind
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Dates: during 1990-1999
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...Americas, a look at native tribes showed that they were not all blood brothers. The three main groups, classified by language, were found to be genetically distinct, suggesting that three separate populations from Asia may have crossed the Bering Strait at different times to settle in America. The Amerind, who predominate in most of North and South America, possess only type O blood; among the Na-Dene, who cluster in Alaska, Canada and the U.S. Southwest, O prevails but A makes an appearance; in the Alaskan and Canadian Inuit (Eskimo), A, B, AB and O blood groups show the pattern...
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