<http://schema.org/description>
"The day our human ancestors figured out fire must have been a pretty exciting one. Through the years, we&amp;#039;ve changed in so many ways, from growing bigger brains to burying our dead. But how did we get from there to here?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/life/evolution/how-do-humans-evolve3.htm/printable>