Modern lifestyles shaped our evolution only a few thousand years ago

Living with livestock may have shaped our immune systems

Frank Bienewald/Getty

ARE humans still evolving? Because evolution usually takes many generations, it is hard to tell. But two new genetic studies reveal DNA changes that took hold within the last few thousand years, suggesting that modern lifestyles have recently shaped our evolution – and are probably still doing so.

“During a short time, human genomes have changed a lot,” says Irina Morozova of the University of Zurich in Switzerland. “We think these changes are driven by human civilisation.”

Both studies looked for evidence of evolution favouring some DNA …

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