Here is the set up of the classic joke: A human brain, a dolphin brain, a octopus brain, and an ant brain walk in to a bar.... Well that will not happen... but 4 diverse experts studying those creatures brains did walk into an interview and this is what came out of it. "Redefine 'Man', redefine 'Tool', or accept chimpanzees as human." - Louis Leakey PARTICIPANTS: Simon Garnier, Suzana Herculano-Houzel, Frank Grasso, Denise Herzing MODERATOR: Faith Salie