<http://schema.org/alternativeHeadline>
"A look at the jaws of Dmanisi hominids provides clues to their dental habits, shedding light on why there is so much variation in the shapes of their jaws."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/human-ancestors-oral-hygiene-secret-the-toothpick>