Students from Wright State's Celina and Dayton campuses explore a dig site in South Dakota with chisels, awls and brushes. It's meticulous work to uncover an object without damaging it in the process. In this picture, students dig about 1 foot deep down from the 300-pound hadrosaur bone. Once it's resting on the equivalent of an earth pedestal, they begin preparing a field jacket using layers of aluminum foil and quick-drying plaster.