Footprints left behind by giant dinosaurs are also helpful in determining facts about the shape of the animal and how it walked and what it looked like. Dinosaurs that walked on two legs had different prints than four legged ones. The size of the print as well as the number of goes and the shape of the foot tell a lot about the body that was supported. These footprints can even tell if the dinosaur could run and how fast. There is an amazing ...