The Mystery of the Jurassic. For years, scientists speculated as to how dinosaurs evolved into giant rulers of the world. Explorers have now uncovered in Argentina what might prove one of palaeontology's most significant finds - relics of a complete eco-system from the mid-Jurassic era. Graphics and analysis of the site combine here to re-create what might have occurred in this elusive age.
Producer Jonathan Renouf ; Executive editor John Lynch