Ancient DNA Offers Clues About Climate Change

Researchers analyzing ice cores drilled from deep underground have found that Greenland may have once been quite green. The DNA samples included butterflies and spiders, and are thought to be the oldest ever recovered. They indicate that boreal forests once flourished in Greenland.

Eske Willerslev, professor, Evolutionary Biology Section Ancient DNA and Evolution Group Director, Center for Ancient Genetics, University of Copenhagen

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