Many of my practical ethical interests involve thinking about biological questions—questions about life and the complex relationships among living things. Fortunately, I have been able to collaborate with biologists throughout my career. Early on I worked with Marc Bekoff. More recently I have been collaborating with a developmental biologist, Laura Grabel, on ethical issues raised by reproductive technologies and human embryonic stem cell research.
•Stem Cell Research (co-edited with Laura Grabel and Peter Singer, Blackwell, 2007).
•“Eggs on the Market” Ethics in Biology, Engineering, and Medicine 3(4) 2012: 227-236.
• “Biomedical and Environmental Ethics Alliance: Common Causes and Grounds” co-authored with William Ruddick, Journal of Bioethical Inquiry 6 (4) 2009: 457-466.
•“Oocytes for Sale?” Metaphilosophy 38 (2-3) 2007: 285-308.Reprinted in Stem Cell Research.
•“Scientific and Ethical Roadblocks to Human Embryonic Stem Cell Therapy” co-authored with Laura Grabel, Stem Cells 2006: 2162-2169.
•Animal Welfare and Individual Characteristics: A Conversation Against Speciesism,” co- authored with M. Bekoff, Ethics and Behavior 3 (2) 1993: 163-175.
•“Animals in Science: Some Areas Revisited” co-authored with M. Bekoff, et. al. Animal Behaviour 44 1992: 473-484.