. That's according to the results of an ambitious 10-year research project that analyzed DNA from hundreds of soil samples across the Arctic.
Woolly rhinos, the researchers said, were still roaming around the Arctic 9,800 years ago. Earlier studies said they went extinct about 14,000 years ago. Most ancient DNA is typically taken from bones or teeth , but new techniques mean that genetic material preserved in soil can now be analyzed, dated, and sequenced.
Known as environmental or eDNA, the technique has been used by archaeologists to shed light on ancient humans, and the same method has also been used during the pandemic to test the sewage of human populations to detect and track Covid-19.The study, which published in the journal Nature, also detailed the Arctic ecosystem for the past 50,000 years.
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