Prehistoric Plaque Reveals Early Humans Ate Weeds

July 16, 2014 6:25 PM

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Prehistoric Plaque Reveals Early Humans Ate Weeds

When looking for a meal, prehistoric people in Africa munched on the tuberous roots of weeds such as the purple nutsedge, according to a new study of hardened plaque on samples of ancient teeth.

Researchers examined the dental buildup of 14 people buried at Al Khiday, an archeological site near the Nile River in central Sudan. The skeletons date back to between about 6,700 B.C., when prehistoric people relied on hunting and gathering, to agricultural times, at about the beginning of the fir...

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