Genetic testing is becoming more and more common now. The costs have come down dramatically in a very short time, but our methods of interpreting the results could still stand to mature a bit. DNA is everywhere, and some of the most interesting DNA is from ancient remains that have been preserved naturally in glaciers or by mummifying techniques practiced by ancient Egyptians. We may never get a clear picture of prehistoric people, but some DNA evidence could help clear up a few mysteries (or start some strange protests?).
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