After the liberation of slaves after which women, right now the signals are getting shed after the subject of pet rights intended for public dialogue. As the earth population grew, so performed the demand to get animals. Nevertheless , not all pets get the same treatment via humans. Several animals are caressed with love and care by their owners during their entire lives, while some others are kept in tiny cubicles exactly where they do not have even enough space to show around, simply to be slaughtered for food after a couple of months, and still others get tested for fatal dosage of drugs and receive vivisected with no anesthesia. The situation begs quite question. Should animals have rights? From this essay, it can be argued that they can should not because first, they will lack the ability to deliver their very own duty, and second, in the event they have legal rights, the human culture could go through greatly. Following the two main points, Klein's refutation to Singer's marginal individuals argument will be presented. Animals should not possess rights because they lack the ability to deliver their obligation. According to the interpersonal contract theory, individuals were born in the state of nature, in which they had to fight each other for endurance. People formed government to make rules that limited all their rights with regard to the general steadiness and happiness. * They could not anymore kill or rob other folks to get what they want because of the limitations, but it also meant that they were doing not have to worry of homicide and robbery as much as they will used to. The arbitrary obligations that people made upon themselves were good for the humanity on the whole when all was said and done. Persons got out of the state of nature and started to cooperate with each other to conquer the nature. Even now, the social contract theory nonetheless remains prominent. People in different society have already been required to comply with certain units of guidelines to be guarded by the legislation because rights and tasks are two sides of the same coin. A language philosopher Roger Scruton aimed this away well in...