<http://schema.org/about>
"Humans like to think of themselves as faithful, but when it comes to true fidelity, many other species offer a better example of how to keep a relationship toge"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/photos/11-animals-that-mate-for-life/black-vultures>