The Giganotosaurus looks very similar to the T-rex. Both were dreaded hunters, had very short arms, walked on two legs and had a large skull. However, the Giganotosaurus lived much earlier and was at home in North America, whereas the Tyrannosaurus rex lived in South America.
My son is going to start collecting Schleich dinosaurs. They are so well made and extra special for a dinosaur-loving boy.