Shift from hunting to farming changed our faces

Published on November 23rd, 2011 | by Admin

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teeth

New research indicates that the shift from being hunter-gatherers to farmers may have altered the shape of our jaws.

A number of researchers have hypothesized that the advent of agriculture, which led to diets consisting of softer foods that required less chewing, led to modifications in the lower jaw, either through natural selection or from developmental changes caused by the way we use our jaws beginning in infancy. But evidence from ancient skeletons has been limited. To test the hypothesis, Noreen von Cramon-Taubadel, an anthropologist at the University of Kent in the United Kingdom, looked at skull and jaw shape in 11 populations, six of which live by farming and five of which are hunter-gatherers. The populations included people from Africa, Asia, Australia, Europe, and the Americas.

[Full story]

Story: Michael Balter, Science Magazine | Photo: Fotosearch

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