One of the most debated topics in modern animal right discourses is whether animals should be used for scientific test or not. There is always a group of scholars and common people who are dead against the animal test. On the other hand, considerate people opine that animals can be used in scientific experiments, if such experiments are meant for the betterment of humanity and animal kingdom. Some of those who are against animal-testing argue that those animals which possess consciousness and a certain level of rational capability should have the right not to be used for scientific experiment. Another group argues that the criterion of having rationality and consciousness should not be the sole basis against animal-testing; rather the fact that every animal suffers from pain is strong enough to ban animal-testing. Obviously, this contra-animal-testing group fails to perceive that a firm and steadfast opposition against animal-test is as harmful as the view of ‘animal as thing’ is. For example, whereas a scientific experiment on animal could save thousands of man and animals lives, ban on animal-testing may destroy the possibility of living a healthy and disease free life. Therefore, though animals have the rights to live a pain-free life, such rights can be repealed for the sake of the humanity’s betterment. Moreover, any ethical perspective on animal-rights must include human’s interest in animal. Otherwise, any attempt to view animals as self-independent beings and detached from humanity must fail to bring about good for humankind as well as animal. Utilitarian Arguments for Animal-testing and Animal Right Perspectives The origin of the arguments for animal-testing can be traced in Biblical affirmation. The “Book of Genesis” asserts that Man has a divine right over the animal kingdom. It says that man’s dominion over the animal kingdom is divine, as the “Book of Genesis” says that God has given Adam dominion over “the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.” (Francione, 1996, p. 45) Such biblical evidence necessarily infers that man can use animals for his own happiness and comfort. Therefore, if animal-testing can bring something good to humankind, then it is thoroughly permissible. Indeed, the utilitarian perspective seems to dominate the pro-animal-test arguments. The pro-animal-test debaters argue that animals can serve as good specimens for medical experiments. Even some animals such as rats, dogs, frogs and many others are efficient replicas of man’s genealogical and biological functions. So, scientific tests on animals can effectively foretell the prospect of expected results of any medical theories, propositions and hypothesis. Therefore, a single animal-test can enormously contribute to the development of medical knowledge. In cases, it can save thousands of men and animals’ lives. Furthermore, a nepotistic prioritization seems to provide the basis for animal-test. A pro-animal-testing debater argues that if the sacrifice of one animal’s life on a scientist’s table can save many men’s lives, then humankind should not keep away from enjoying the opportunity to use animals for man’s sake. Animal’s Sentience, Ability to Feel Pain and Ethical Basis of Arguments for Animal-testing