<http://schema.org/about>
"Brain cells that fire only when monkeys act unselfishly may provide clues to the neural basis of altruism, according to a new study."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/research-innovations/stories/brain-cells-that-feed-on-altruism-discovered>