These sauropods also had different types of necks: that of Brachiosaurus arched proudly into the heavens with the erect profile of a giraffe, perfect for reaching the highest leaves, but Diplodocus may not have been able to lift its neck much past its shoulders and may have acted more like a vacuum cleaner sucking up shorter trees and shrubs. Finally, the heads and teeth of these sauropods differed as well. Brachiosaurus and Camarasaurus had deep, muscle-wrapped skulls and jaws lined with spatula-shaped teeth, so they could eat harder foods like thick stems and waxy leaves. But Diplodocus had
...more
