<http://schema.org/about>
"We already have some well-established methods we use to determine how healthy species are -- the International Union for Conservation of Nature's 'Red List' perhaps being the"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/new-method-attempts-to-determine-which-endangered-species-can-actually-be-saved.html>