<http://schema.org/about>
"In nature, bigger, healthier, stronger individuals tend to have more offspring and thus there is a selection pressure in their favor. But humans can put other kinds of pressure on species, for instance by targeting bigger fish."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/ocean-conservation/targeting-bigger-fish-we-are-breeding-populations-smaller-fish.html>