Jessica Pierce is a faculty affiliate at the Center for Bioethics and Humanities at the University of Colorado Anschutz Medical School. Her books include Run, Spot, Run: The Ethics of Keeping Pets. Website jessicapierce.net Marc Bekoff is professor emeritus of ecology and evolutionary biology at the University of Colorado Boulder. His books include Canine Confidential: Why Dogs Do What They Do. Website marcbekoff.com Twitter @MarcBekoff