We talk with author and retired anthropology professor Pat Shipman about her book, The Invaders: How Humans and Their Dogs Drove Neanderthals to Extinction (Harvard University Press, March 2015). Shipman theorizes that the combination of early humans and wolf-dogs was an unstoppable force. We hear about the Cardiff Giant hoax in central New York and tell the story of Simo Hayha, otherwise known as White Death.