Pretty much everyone has heard of T. rex, but there's still a lot to learn about the king of the dinosaurs.
Was the dinosaur "Sue" really supposed to be named "Bob?"
Recent studies on dinosaur joints suggest that they may have been even taller than we thought!
In recent years, palaeontologists have unearthed some of the smallest dinosaurs known - not bigger than 20 feet.
Until very recently, humans tended to reproduce before reaching full adult maturity, as did the dinosaurs. Learn more on this Moment of Science.
When dinosaurs ruled the earth, the Tyrannosaurus Rex ate just about anything it wanted. But did that include other T. Rex?