The Six Principles, Philosophy, and Applying Human Ethics to Animals
Beauchamp and DeGrazia’s framework of six principles of animal research ethics is arguably the most constructive step forward in the ethics of animal experimentation in the past fifty years. Their advance beyond the influential Three-Rs framework is due to their display of the core values and basic principles in animal research ethics. Further work on the practical implementation of their principles can start by focusing on how to better weigh human interests against animal interests. This is where a great fudge can loom large: either human benefit is overestimated or harm to animals is underestimated. How benefits and harms can be more precisely understood, evaluated, and balanced is critical. To this end, this commentary expands on Beauchamp and DeGrazia’s principle of sufficient value to justify harm, principle of basic needs, and principle of upper limits to harm.