The universities employ more than 90,000 staff between them***, and as you would expect the larger institutions tend to conduct the most animal research. All universities are committed to the ‘3Rs’ of replacement, reduction and refinement. This means avoiding or replacing the use of animals where possible, minimising the number of animals used per experiment and minimising suffering to improve animal welfare. However, as universities expand and conduct more research, the total number of animals used can rise even if fewer animals are used per study.