One of the most complete tyrannosaurus skeletons ever found is being moved from Montana to Washington DC. There, hundreds of millions of people will eventually be able to view it.
Inside a museum basement in Montana, a small team of scientists have been preparing a dinosaur for an extraordinary road trip.
Bones the size of a child and others that are mere fragments have been examined, photographed, checked off lists, placed in cushioning cradles and packed in 16 wooded crates.
The BBC's Jane O'Brien shows how it is done.
Produced by Jane O'Brien and David Botti
Additional photos and video courtesy Museum of the Rockies
