<http://schema.org/about>
"Say a thank you to the pathogens and parasites of the world: Without them, there might be no such thing as sex. A new study, dubbed the Red Queen Hypothesis, fi"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/sex-may-have-evolved-from-parasites>