Tyrannosaurus Rex had a large brain for its size and powerful back legs that let it hunt prey or chase off competitors for its kills or scavenged meals.
T. Rex were big. They were one of the biggest carnivores — meat eating dinosaurs to ever live at 12 metres or 40 feet long.
But they were not the biggest. Giganotosaurus, Spinosaurus and Carcharodontosaurus were bigger still.
