Andrews, Roy Chapman (1884-1960), was well known as an author and explorer, and as a leader of expeditions for the American Museum of Natural History. As a result of work from 1908 to 1914 in Alaska and Asia, he became an authority on whales. Between 1916 and 1930, Andrews led expeditions to central and eastern Asia. In the Gobi Desert, he and his co-workers found the remains of Baluchitherium, the largest land mammal that ever lived. They also discovered the first dinosaur eggs ever found and unearthed evidence of a prehistoric civilization.