This episode of the 'rex files' introduces you to a Tyrannosaurus rex called STAN and the people who discovered, excavated, prepared, and named this 65 million year old Tyrant King of the Cretaceous Period. Excavation and preparation of the fossil skeleton required 30,000 hours of labor. From the moment of discovery, these scientists began to unlock the secrets of STAN's life and the environment of this largest of the Earth's terrestrial carnivores. The second of five T. rex skeletons excavated by the staff at Black Hills Institute of Geological Research since 1990, STAN's original skeleton can be seen by visitors to the Museum at Black Hills Institute in Hill City, South Dakota. Scientific reproductions of STAN's skeleton, which retain the exquisite detail of the original fossil bone, are displayed in major venues around the world, including some of the most prestigious museums in the world.