The new species shows the dinosaurs got bigger a lot earlier than scientists originally thought. It also supports the theory that T. Rex originated in North America, not Asia. Scientists recently ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study led by UCL ...

Scientists identified a new species of Tyrannosaurs that's likely a predecessor to T. Rex. The new species shows the dinosaurs got bigger a lot earlier than scientists originally thought. It also ...