US-HISTORY-MUSEUM-THE NATIONS T. REX

Visitors and media get a look inside a crate containing the fossilized jaw bone of The Nation's T. rex (Tyrannosaurus rex) presented to the museum by the US Army Corps of Engineers during ceremonies at the Smithsonian Museum of Natural History April 15, 2014 in Washington, DC. The crate, is one of 16, containing the remains of The Nations T. rex, that was discovered by a Montana rancher near Fort Peck Reservoir in1988 which is owned by the Army Corps of Engineers. The Nations T. rex is on loan to the Natural History Museum for 50 years. AFP PHOTO / Karen BLEIER (Photo credit should read KAREN BLEIER/AFP via Getty Images)