As far as I know it’s one of the few fields with authorities that can block animal cruelty on ethical grounds through ethical review boards (mandatory Institutional Animal Care and Use Committees in the case of federally funded research).
Researchers must submit detailed protocols describing exactly what they plan to do, how many animals they’ll use, what procedures will be performed, how pain and distress will be managed, and why alternatives like cell cultures won’t work. There’s a whole framework called the 3Rs: replace animals where possible, reduce the number used, and refine procedures to minimize suffering.
Science is the wrong tree to go barking up, especially given the impact of the research overall, compared to clothing or food or other animals products.