<http://schema.org/alternativeHeadline>
"The human ancestors likely got their beefy arms by scraping animal hides. If true, this changes the view of the daily life of a Neanderthal."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/research-innovations/stories/neanderthals-arm-strength-rivaled-popeyes>