Researchers extract nicotine from ancient dental plaque for the first time. The research provides a new method for determining who was consuming tobacco in the ancient world and could help trace the use of tobacco and other intoxicating plants further back into prehistory.

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Researchers extract nicotine from ancient dental plaque for the first time. The research provides a new method for determining who was consuming tobacco in the ancient world and could help trace the use of tobacco and other intoxicating plants further back into prehistory.