Ancient Teeth Bacteria Record Disease Evolution

An anonymous reader writes "DNA preserved in calcified bacteria on the teeth of ancient human skeletons has shed light on the health consequences of the evolving diet and behavior from the Stone Age to the modern day. The ancient genetic record reveals the negative changes in oral bacteria brought about by the dietary shifts as humans became farmers, and later with the introduction of food manufacturing in the Industrial Revolution."

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/cdTf635mpZE/story01.htm

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