[Fig] New Scientist: Why were dinosaurs so huge?

According to Britain's New Scientist magazine, about 150 million years ago, the rulers of the earth were the dinosaurs, and sauropods were the main characters among them. The sauropods, a kind of herbivorous dinosaur, were over 30 meters in length, and had long necks and tails. Their sturdy legs supported barrel-like bodies. This family also included the Diplodocus, Brachiosaurus, and Brontosaurus.