John Archibald is a Distinguished University Research Professor in the Department of Biochemistry & Molecular Biology at Dalhousie University in Nova Scotia, Canada, and a Senior Fellow of the Canadian Institute for Advanced Research. He is the author of One Plus One Equals One: Symbiosis and the Evolution of Complex Life.
Sean Runnette, a multiple AudioFile Earphones Award winner, has also produced several Audie Award-winning audiobooks. His film and television appearances include Two If by Sea, Copland, Sex and the City, Law & Order, Third Watch, and lots and lots of commercials.