The Denver Museum of Nature & Science is preparing to display one of the rarest dinosaur fossils ever discovered: a footprint from what researchers have identified as the world’s only known adult Tyrannosaurus rex trackway.
The find traces back to the badlands of North Dakota, where Northglenn High School science teacher Kent Hups made the discovery while exploring the area last summer.
“When you’re out walking and looking for things, you’re just looking for things,” Hups said. “You don’t wake up that morning and go I think I’m going to find a T-rex trackway.”…