Tom Regan, advocates the animal right and he claims abolition of the use of animal in science, commercial animal agriculture, sport hunting, trapping, and all other ways that we treat animals. He argues that people must change their beliefs about the animal rights that is fundamentally wrong. The society need a serious movement for correcting the whole system of treating animals. He stresses that people should stop all cruelties to the animals. Peoples are speciesism, if they believe that only human have inherent and high degree of value, and animals have only indirect value. Regan argues in his article about utilitarianism and contractarianism theory and he mentions that a person or a theory is rational when they recognize the direct
