Socrates once said, "the only true wisdom is in knowing you know nothing," and for this episode that couldn't be more true. We've consulted the latest research to figure what we think we know and what we know we don't know. As far as prehistoric Homo sapiens are concerned, the answer is... who knows?

Support this show http://supporter.acast.com/teach-me-something.

Hosted on Acast. See acast.com/privacy for more information.