A groundbreaking discovery reveals Khankhuuluu mongoliensis, the closest-known ancestor to T. rex, showcasing the evolutionary journey from small predators to apex hunters. Learn about this medium-sized dinosaur that roamed 86 million years ago!
A newly discovered species of early tyrannosaur, Khankhuuluu mongoliensis, sheds light on the evolutionary origins of T. rex, filling a critical gap in the dinosaur family tree.