The late 19th century was a boom period for fossil discoveries in the American West. It was also when the search for new finds drew two pioneering paleontologists─Edward Cope of Philadelphia's Academy of Natural Sciences and Yale University's O.C. Marsh─into a bitter rivalry. See what drove the former colleagues to bribery, theft, and sabotage in this "American Experience" program. 60 min. Widescreen; Soundtrack: English Dolby Digital 5.1; Subtitles: English (SDH).