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September 6, 2020 04:34 am

Researchers Baffled as Warrior Skeletons Reveal Bronze Age Europeans Couldn't Drink Milk

sciencehabit quotes Science magazine: About 3000 years ago, thousands of warriors fought on the banks of the Tollense river in northern Germany. They wielded weapons of wood, stone, and bronze to deadly effect: Over the past decade, archaeologists have unearthed the skeletal remains of hundreds of people buried in marshy soil. It's one of the largest prehistoric conflicts ever discovered. Now, genetic testing of the skeletons reveals the homelands of the warriors—and unearths a shocker about early European diets: These soldiers couldn't digest fresh milk... The results leave scientists more puzzled than ever about exactly when and why Europeans began to drink milk. "Natural genetic drift can't explain it, and there's no evidence that it was population turnover either," says Christina Warinner, a geneticist at Harvard University and the Max Planck Institute for the Science of Human History who was not involved with the study. "It's almost embarrassing that this is the strongest example of selection we have and we can't really explain it." Perhaps something about fresh milk helped people ward off disease in the increasingly crowded and pathogen-ridden European towns and villages of the Iron Age and Roman period, says the study's co-author. But he admits he's baffled too. "We have to find a reason why you need this drink."

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