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To reconstruct an ancient ecosystem, the proof is in the squirrel poop
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To reconstruct an ancient ecosystem, the proof is in the squirrel poop

Researchers have uncovered a fascinating cluster of ancient Arctic ground squirrel poop, preserved in permafrost, that dates back up to 700,000 years. This fossilized material is packed with ancient DNA, providing a unique window into the ecosystems of the Ice Age. It's like a time capsule, revealing the plants, insects, and large mammals that once roamed the Yukon. The study highlights how these little squirrels acted as nature's collectors, preserving a rich biological record in their frozen burrows.
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