For many years, paleontologists have debated whether the single skull used to define the species Nanotyrannus represented a true species or simply a young Tyrannosaurus rex. A new study in Science has now resolved this question. The research…

For many years, paleontologists have debated whether the single skull used to define the species Nanotyrannus represented a true species or simply a young Tyrannosaurus rex. A new study in Science has now resolved this question. The research…