Medical research is the hardest case for proposition in this debate to prove, since it has previously yielded substantial benefits for humanity , while contemporary animal research continues to contribute demonstrably to the speed and efficiency with which new scientific break throughs are achieved. Focussing the proposition case on toxicology, or cosmetics alone would divert the debate into an area of law and ethics that is settled in most respects: many states around the world have instituted bans using animals to test cosmetics and the toxicity of domestic cleaning products. Thus the best proposition strategy is to focus on the hard case of medical research.
Animal research has been used for several centuries as part of efforts to better understand the world around us. Almost all states actively research on animals at present. The total scale of all research on vertebrates is hard to measure, but according to some estimates it could be as high as 115,000,000 animals per year, with the vast majority of these being euthanized at the end of the period of experimentation.
The pharmaceutical industry spends a significant amount of time conducting research on animals. Due to the relative paucity of drugs that make it on to the market place after the initial testing phases, the global cost of each successful new drug in terms of animal lives, is around 5.75 million animals. By contrast the now shrinking industry sector on chemical safety testing using animals, uses around 860 animals per chemical when screening for carcinogens (cancer-causing substances).
Whilst much the research described above is