Abstract
Some animal research is arguably morally wrong, and some animal research is morally bad but could be improved. Who is most likely to be able to identify wrong or bad animal research and advocate for improvements? I argue that philosophical ethicists have the expertise that makes them the likely best candidates for these tasks. I review the skills, knowledge and perspectives that philosophical ethicists tend to have which makes them ethical experts. I argue that, insofar as IACUCs are expected to ensure that research is ethical, they must have philosophical ethicists as members.