A newly discovered dinosaur from Mongolia, named Khankhuuluu mongoliensis, or "Dragon Prince," is believed to be a crucial ancestor of the Tyrannosaurus rex (T rex), shedding light on the T rex's complex evolutionary history.
Living approximately 86 million years ago during the Cretaceous Period, Khankhuuluu predates the Tyrannosaurus by around 20 million years. This mid-sized dinosaur, measuring about 13 feet in length and weighing roughly 1,600 pounds, walked on two legs and possessed a long snout filled with sharp teeth.
