Scientists have extracted the oldest DNA ever recoveredâtwo million years oldâfrom sediments beneath Greenland's ice sheet. The genetic material reveals an ecosystem utterly different from today's Arctic.
A Warmer Greenland
The ancient DNA came from mastodons, reindeer, geese, lemmings, and various plants including poplars and birches. Two million years ago, northern Greenland was a forested landscape, 10-17°C warmer than today, supporting diverse life that has long since vanished from the region.
Implications for the Future
Understanding this ancient ecosystem helps scientists predict how Arctic regions might respond to future warming. It also demonstrates that DNA can survive far longer than previously believed possible under the right conditions.
The techniques developed could be applied to other frozen environments, potentially recovering genetic information from other lost worlds.
This article was generated by AI to provide informational content.