·Animal research is irrelevant to our health and it can often produce misleading results.
·It would be completely irresponsible and unethical to use drugs on people that had not been thoroughly tested on animals.·One experiment in nerve regeneration involves cutting a big nerve in a rat‘s leg， leaving its leg paralysed.
·Even with these new developments in research， only a tiny proportion of all tests are done without using animals at some stage.
·The use of animals in experiments cannot stop immediately if medical research is to continue and consumer products are to be properly tested.
·When it comes to research into heart disease and its effects on the body， we do not have adequate substitutes for the use of animals.
·I was surprised to see his room in such a litter.·The conditions that existed ten years ago are reproduced today.