The Richard Dawkins Foundation has released a video where Professor Dawkins elaborates on what he regards as the single most powerful and irrefutable argument for evolution theory. Frank Sherwin, another Zoologist, addresses Dawkin's various works, starting with his newest work "Flights of Fancy" and going all the way back to the "Selfish Gene." Sherwin also addresses Dawkin's ultimate argument point by point. Sherwin vs Dawkins: Zoologists go head to head! Find out on Current Topics in Science.