Part 1 of Essay
It is acceptable to experiment on animals. Although animal experimentation is cruel it benefits animals in the long run. One example of this is the discovery of vaccines by Louis Pasteur: By injecting the organism that caused chicken cholera into uninfected chickens he found that those chickens became immune to later in ....

Part 2 of Essay
.... good reason animal experimentation is tolerable is because sometimes we have to be cruel to improve our well-being. The first example is that the cruel experiments result in more animals and people surviving otherwise fatal or paralyzing diseases. The Research Defense Society stated that 50,000 people fill antibiotic prescriptions, 180,000 people with diabetes survive because of insulin, 4,000 heart defects are corrected, and 400 heart and heart/lung transplants are performed a year because of animal ....