(MMMC, 2002) They argue that to use intelligence and compassion as a sliding scale of the right to life would cause many humans to be justified out of existence. However, even if one accepts that too many animals are experimented upon, and researchers should use other means, it is similarly hard to justify the elimination of all animal experimentation, altogether, as this would have meant the end of such recent drug developments in AIDS research, as well as more questionable animal tests, as for instance, the use of rabbits in cosmetic testing, for which there are acceptable substitutes that do not require animals.

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