For 25 years he has researched, taught, lectured, and published in areas such as philosophy, literature, social and political theory, cultural studies, film and mass media, science and technology studies, politics, terrorism and peace/security studies, and ethics (with a focus on animal rights, environmentalism, and biotechnology). He is the author and editor of 10 books and is currently completing a new book, Animal Liberation and Moral Progress: The Struggle for Human Evolution.