A new DNA marker could re-write our current understanding of how humans first reached America as Haplogroup X complicates our understanding of human history and migration The DNA marker Haplogroup X could re-write our understanding of how humans reached America (Stock) (Image: Getty Images/iStockphoto)

Boffins have been baffled by the presence of a DNA marker that could suggest an unknown ancient migration wave which may have brought people to the Americas. The find could rewrite our understanding of human migration to the Americas. ‌

Experts have been perplexed at how Haplogroup X arrived into the Americas more than 12,000 years ago. This is due to the DNA marker's presence in Europe as it somehow made its way to the Americas despite leaving no clear trail through Alaska o

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