In 1859, Charles Darwin published the "Origin of Species", a book that changed science forever. But why is it still important to understand his theories today? In this podcast, oceanographer Sylvia Earle, biologist Ken Miller, and the late paleontologist Steven Jay Gould offer their takes on the subject. Podcast produced by David Levin and Susan K. Lewis. Original interviews by Susan K. Lewis and David Espar. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. To learn more, go to pbs.org/nova/evolution