A Prehistoric reptile referred to as the king of the dinosaurs. Tyrannosaurus Rex is a dinosaur with a pair of sharp 2 clawed arms. it's also referred to as "T Rex". Tyrannosaurus was around 12 feet tall and 40 feet long. Because it's a dinosaur it cannot talk or communicate in human language but rather communicate through roars and bellowing. has sharp teeth with a bite force of 57,000 newtons.