Environmental DNA uncovers a 2-million-year-old ecosystem in Greenland

Environmental DNA uncovers a 2-million-year-old ecosystem in Greenland
Around 2 million years ago climate in Greenland resembled that forecasted under future warming containing trees such as poplars and birch and animals like hare, lemmings, mastodons and reindeer.
Paleoclimatic records show strong polar amplification with annual temperatures of 11–19 degrees Celsius above current values. The biological communities inhabiting the Arctic during this time remain poorly known because animal fossils are rare.

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