. While both seek to improve the lives of non-human beings, they diverge significantly in their ultimate goals and ethical foundations. Understanding the Difference
The “3Rs” (Replacement, Reduction, Refinement) embody the welfare paradigm. Rights advocates reject all invasive research on sentient beings, even if pain-free, because consent is impossible. Recent moves to grant legal personhood to great apes in Spain and New Zealand’s recognition of animal sentience law represent hybrid approaches.
Why isn't there one unified "animal protection" movement? Because these two camps disagree on fundamental questions.