Medical Experiment Conducted on Animals

MEDICAL EXPERIMENT CONDUCTED ON ANIMALS
For many centuries people have experimented on animals. There are two main reasons for doing this: first, to find out more about the animals themselves, and, secondly, to test substances and procedures to see if they are harmful (with a view to deciding whether or not they can be used on human beings)
 Experiments on animals should be considered on a case-by-case basis. The proper principle to apply, however, is that the reduction of human suffering is our first priority and the prevention of animal suffering or death is secondary to that (although still important). So that if there is a decent chance that an experiment will result in an important medical breakthrough that will reduce human suffering and death then it is justifiable to allow animal suffering. Animal experimentation is the (sometimes distasteful) means to much greater ends. 
 Although in principle it is more important to reduce human suffering that to prevent animal suffering, in practice it is possible (and absolutely right) to keep animal suffering to an absolute minimum. Animal experimenters should aspire to the highest levels of animal welfare in their laboratories, using anaesthetics wherever possible and keeping animals in clean, comfortable, and healthy conditions. In short, it is possible to experiment on animals without being cruel to animals
"Animals make good research subjects for a variety of reasons. Animals are biologically similar to humans. They are susceptible to many of the same health problems, and they have short life-cycles so they can easily be studied throughout their whole life-span or across several generations."
Human beings share over 99.4% of their genes with chimpanzees and about 99% with mice. It is instructive to consider that humans also share approximately 90% of their genes with cows. The physiologies of humans and these animals are very similar, with very similar organ and nerve systems. For this reason, it is useful and...