What animals are used in research?
By far the most frequently used animals are rats and mice and all are specially bred for lab research. No strays or unwanted pets can be used and the great apes: chimpanzees, orang-utans and gorillas, have not been used in the UK for over 20 years and their use is now banned.
Are these animal species of equal moral importance, or are some species more valuable than others?
Is this relative importance reflected in the numbers of animals used?
Why do you think this?
Which fields of research and testing use animals?