Russia News: Sputnik International – Breaking News & Analysis – Radio, Photos, Videos, Infographics: Prehistoric ‘Chewing Gum’ Reveals Scandinavia’s Oldest Human DNA

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Over 10,000 years ago, Scandinavia’s first inhabitants left their DNA in masticated lumps made of birch bark that they used to chew on. While bone material from this era is scarce, ancient “chewing gum” is an invaluable source of information and a good proxy for human bones in palaeogenetic studies. Sputnik International – Breaking News …

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