Uh-oh, gulp! The dangerous Spinosaurus is hunting again and opens his jaws menacingly. Has he picked up a scent? It’s best to avoid this prehistoric giant, because his hunger is enormous. No wonder: as one of the largest known dinosaurs, he can grow up to 18 meters long and weigh nine tons. He needs food regularly. If you don’t want to end up between those powerful jaws, you’d better stay out of his way.