This collection of essays originated in conferences held at the Gregorian University in Rome and at the University of Notre Dame to commemorate the 150th anniversary of the publication of Charles Darwin's On the Origin of Species. These essays, by leading scholars, assess the continuing relevance of Darwin's work from the perspectives of biological science, history, philosophy, and theology. The contributors focus on three primary areas: developments in evolutionary biology that open up new ground for interdisciplinary dialogue; reflections on human evolution, with a particular focus on evolution and ethics; and new reflections on theology and evolution, particularly from a Roman Catholic perspective, drawing both on traditional perspectives and on new currents in Catholic theology. Contributors: Phillip R. Sloan, Gerald McKenny, Kathleen Eggleson, Scott F. Gilbert, Stuart A. Newman, Alessandro Minelli, David J. Depew, Gennaro Auletta, Ivan Colagè, Paolo D'Ambrosio, Bernard Wood, Robert J. Richards, Paul E. Griffiths, John S. Wilkins, John O'Callaghan, William E. Carroll, Józef Zycinski, Celia Deane-Drummond, Peter J. Bowler, and Jean Gayon.