Paleontologists have discovered the first known trackway made by a full-grown Tyrannosaurus rex: four connected footprints found in the badlands of southwestern North Dakota, not far from the Montana border.
MINNEAPOLIS (WCCO via CNN Newsource)Paleontologists have discovered the first known trackway made by a full-grown Tyrannosaurus rex: four connected footprints found in the badlands of southwestern No… [+2272 chars]