Christine Desdemaines-Hugon is a scholar of prehistoric anthropology and cave art of the Dordogne region of France. She's the author of "Stepping-Stones."
There's no better way to get a feel for the origins of the human mind than to go and see ancient cave art. Anthropologist Christine Desdemaines-Hugon took Steve and Anne to two French caves with paintings dating back more than 10,000 years.
