Includes a 60 minute lecture in which evolutionary biologist Stephen Jay Gould poses 3 riddles: Who was the naturalist on board the Beagle? Why didn't Charles Darwin use the word "evolution"? And why did Darwin delay so long in publishing the most radical notion in the history of biology? Additional materials include: the complete text of Gould's Bully for brontosaurus and 19 related essays; letters from Darwin, excerpts from his biography and other reference materials; the texts of Voyage of the Beagle and On the origin of the species; plus related literature, maps, graphs, and illustrations.