Imagine waking up in a world 10,000 years ago. Towering grasslands stretch as far as the eye can see, woolly mammoths roam alongside bison and wild horses, and the Arctic is alive with some of the largest herds the planet has ever seen. It may sound like the setting of a prehistoric documentary, but scientists believe this ancient ecosystem could hold clues to tackling one of the biggest climate challenges of the 21st century.
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