Roy Chapman Andrews (Born 26 Jan 1884; died 11 Mar 1960). American naturalist, explorer, and author, who spent his entire career at the American Museum of Natural History. He led many important scientific expeditions with financial support through his public lectures and books, particularly in central Asia and eastern Asia. On his 1925 central Asian expedition, the first known dinosaur eggs were discovered, also: a skull and parts of Baluchitherium, the largest known land mammal; extensive deposits of fossil mammals and reptiles previously unknown; evidence of prehistoric human life; and geological strata previously unexplored. During his career he was not known as an influential scientist, yet Andrews was the museum promoter, creating immense excitement and successfully advancing research there.