Guerra de los Huesos
In 1876, Edward Drinker Cope funded Sternberg's first formal expedition to Park, Kansas, and Sternberg continued to work with Cope for several field seasons in the years that followed.Sternberg later collected fossils for Cope's rival in the Bone Wars, Othniel C. Marsh, working alongside John Bell Hatcher in Long Island, Kansas. Sternberg also collected for various museums and institutions, and his work took him all over North America, including locations in California, Montana, Texas, and Canada.