A newly discovered dinosaur species in Mongolia, Khankhuuluu mongoliensis, is rewriting our knowledge of tyrannosaur evolution.
This 86-million-year-old ancestor of the T.rex reveals crucial insights into the transition from smaller predators to apex giants.
The discovery highlights the gradual development of key features, such as powerful jaws and skull adaptations, driving the tyrannosaur's dominance.
This research, published in 'Nature', emphasizes the importance of studying fossils to understand prehistoric life's dynamic change.