Tyrannosaurus Rex Fossil Sue At Field Museum In Chicago

CHICAGO, IL - APRIL 1: Visitors to the Field Museum of Natural History in Chicago, Illinois admire Sue, one of the largest, most extensive and best-preserved Tyrannosaurus rex specimens ever found, Tuesday, April 1, 2014. Named after Sue Hendrickson, the paleontologist who discovered the fossil in 1990, it was acquired at auction by the Field Museum in 1997 for $8.36 million, the highest amount ever paid for a dinosaur fossil. The Smithsonian Institution lost to the Field Museum and has been trying to buy a mainly complete fossil ever since. The Smithsonian recently bought a Tyrannosaurus rex and will have it in the museum by 2015. (Photo by Brett T. Roseman for The Washington Post via Getty Images)