<http://schema.org/about>
"In nature, raising tiger cubs to maturity is almost always the job of mom alone, with tiger-fathers showing little interest in child rearing if any at all. For what may be the very first time, however, officials from a wildlife"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/male-tiger-plays-mom-to-a-litter-of-orphaned-cubs.html>