North Carolina paleontologists’ research shows new evidence that a Tyrannosaurus rex discovered in Montana was both female and pregnant.
North Carolina paleontologists’ research shows new evidence that a Tyrannosaurus rex discovered in Montana was both female and pregnant. Mark Hallett
North Carolina paleontologists’ research shows new evidence that a Tyrannosaurus rex discovered in Montana was both female and pregnant. Mark Hallett

Research shines light on Tyrannosaurus sex

March 20, 2016 9:52 AM