Some of the best evidence comes from T. rex.
Scientists find colored, feathered dinosaur fossils.
Scientists examine the bones of dinosaurs for clues.
An asteroid impact might have played a role.
The challenges scientists face in cloning DNA.
Fossils are naturally-preserved physical traces of long-dead organisms.
Dinosaur fossils are found almost exclusively in sedimentary rocks.
How fossils are prospected and removed from rocks.
The fine art of restoring fossils to their original state.
Only a small percentage of the Museum's specimens are on display.