Pregnant T. rex could aid in dino sex-typing
A pregnant Tyrannosaurus rex that roamed Montana 68 million years ago may be the key to discerning gender differences between theropod, or meat-eating dinosaur, species.
Paleontology News — ScienceDaily
A pregnant Tyrannosaurus rex that roamed Montana 68 million years ago may be the key to discerning gender differences between theropod, or meat-eating dinosaur, species.
Paleontology News — ScienceDaily