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'Biological time capsules': How DNA from cave dirt is revealing clues about early humans and Neanderthals

The oldest sediment DNA discovered so far comes from Greenland and is 2 million years old.
Houston Chronicle

DNA from bones may solve mystery of last czar's family

WORCESTER, MASS. — Answers to the mystery of what befell the heirs of the last czar of Russia nearly a century ago may rest behind locked laboratory doors in Moscow and New England. DNA test results ...