<http://schema.org/about>
"Wolves, bears, sharks -- conservation has neglected such top-of-the-food-web species in favor of stopping biodiversity loss in the abstract, says Peter Kareiva."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/why-conservation-cannot-continue-ignoring-apex-species>