This document summarizes a lecture on the moral status of animal experimentation and its implications for medical ethics. It discusses: - The history of ethical concerns regarding animal experimentation from a focus on husbandry to recognizing animal suffering. - Debates around whether animals have moral status and if medical research can be justified, from arguments that it can due to benefits to humans to extreme views that it cannot be done without animal consent. - The moderate view that experimentation is only justified if important enough that we would perform it on disabled humans, and implications that we should allow more human testing or prove why animal lives are less valuable. - Connections to questions about what makes human life uniquely valuable and