<http://schema.org/about>
"Tortoises are among the oldest species on the planet, remaining virtually unchanged for millions of years -- but sometimes they too need a replacement part every now and then. When a severely injured red-footed tortoise was"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/tortoise-loses-leg-learns-to-walk-with-a-wheel.html>