Richard D. Ryder

Dr. Richard D. Ryder is a psychologist, ethicist, historian and political campaigner. He is also a past chairman of the RSPCA. His other books include ""Victims of Science: The Use of Animals in Research, The Political Animal: The Conquest of Speciesism ""and ""Animal Welfare and the Environment"" (editor). As Mellon Professor, he taught Animal Welfare at Tulane University.