Yuval Noah Harari: What explains the rise of humans?

This quick TED talk entry is courtesy of TED.com. Seventy thousand years ago, our human ancestors were insignificant animals, just minding their own business in a corner of Africa with all the other animals. But now, few would disagree that humans dominate planet Earth; we’ve spread to every continent, and our actions determine the fate of other animals (and possibly Earth itself). How did we get from there to here? Historian Yuval Noah Harari suggests a surprising reason for the rise of humanity.  

Click Here to see the talk on TED.com