Even during the age of Plato, man has thought of himself as superior to other animals (Plato 3-6). Aristotle described man as a “rational animal.” And because of the ability to rationalize, the human species has separated itself into its own class with no fellow peers or combatants (Rollin 14-15). The only competition human kind now faces is with itself because of the same trait of rationalization that separated them in the first place.

In today’s society, animals play an important role in scientific development. The current estimate for laboratory animals used annually in experimentation ranges from 200 to 225 million animals (Rollin 135). The problem man now confronts is whether this sacrifice is worth the benefits that it produces. Although animal experimentation may be cruel and harsh, it is necessary for the progression and welfare of the human race.

Many feel that, in theory, the human species has no obligation to animals. Animals have no mental consciousness close to being compared to that of a sophisticated man. They are resources and therefore expendable (Cohen 179). Mankind is self-legislative and can make moral decisions while animals cannot. Our obligations ar

In December 1995, the FDA gave researchers at the University of California, San Francisco permission to inject an AIDS patient with baboon marrow. The logic behind this was that since baboons are resistant to HIV, the marrow would be a source of immune cells that could provide a replacement for the patients with damaged immune system (Williams 61-62). The problem with Xenotransplant is that it is still in the discovery stage, and the chances of a healthy recovery are slim. When organs and tissues are grafted, the body wants to reject them. By using anti-rejection drugs, scientists have been able to increase the chances of a successful transplant (McArdle 78-80). Although, even if a transplant is successful, physicians have to worry about the transmission of animal diseases into the human population. Bacteria, fungi, and viruses that may not be harmful to the hosting animal may prove deleterious in humans (McArdle 91-92). But many of these problems will be weeded out as progress continues.

Some topics in this essay:
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