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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 ...
In a spectacular bit of science, a group of scientists has sequenced the DNA from the femur of a man who died 45,000 years ago. The femur they studied is over 20 times older than this 2000 year old ...
Most people of non-African ancestry carry about 2% Neanderthal DNA, and researchers report a mirror image pattern with more human DNA on the Neanderthal X chromosome.
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