DNA of Ancient Children Offers Clues on How People Settled the AmericasBreaking News
tags: archaeology, DNA
Researchers have long wondered how people settled the Americas, particularly the path they took to the new territory and the timing of their expansion. Until recently, archaeologists studying these questions were limited mostly to digging up skeletons and artifacts.
But now scientists have begun extracting DNA from human bones, and the findings are providing new glimpses at the history of the first Americans. On Monday, researchers at the University of Alaska and elsewhere published an important addition to the growing genetic archive.
In the Proceedings of the National Academy of Sciences, the researchers reported that they had recovered DNA from two skeletons of children who lived in Alaska 11,500 years ago. The genetic material is not only among the oldest ever found in the Americas, but also the first ancient DNA discovered in Beringia, the region around the Bering Strait where many researchers believe Asians first settled before spreading through North and South America.
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