Sediment DNA also traces life outside the cave. Predators dragged prey into sheltered chambers, humans left waste behind. By ...
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DNA has an expiration date. But proteins are revealing secrets about our ancient ancestors we never thought possible.
The moment a creature dies, its DNA begins to break down. Half of it degrades every 521 years on average. By about 6.8 million years, even under ideal preservation conditions in cold, stable ...
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