<http://schema.org/about>
"Modern extremophiles living in deep sea vents aren't living fossils; they appeared after the meteor extinction event that occurred 65 million years ago."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/deep-sea-vent-life-arose-after-last-mass-extinction>