Matthew Groves, left, and Paul Brinkman, both fossil preparators at the museum, inspect the ischium bone of dinosaur Sue and make repairs to fragments that have dislodged. The ischium bone of dinosaur Sue in its mold is turned over so a mold can be made of the other side in the lab at the Field Museum of Natural History.
COMMENTING POLICY:Readers are encouraged to post comments that are germane to the article. We reserve the right to remove any user, and to delete comments that contain abusive language or personal threats, as well as those that are racist or demeaning. Readers may report comments by clicking "Report Abuse." Once a comment has been flagged, a Baltimore Sun staffer will investigate. Click here for more information on commenting.