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.
There is plenty of evidence, after all, that modern day birds evolved from 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?