Peter Singer’s preference utilitarianism, especially as it relates to animal rights, represents a significant departure from traditional utilitarian approaches. Unlike classical utilitarianism, which focuses on maximizing pleasure or happiness, preference utilitarianism is centered on the idea of fulfilling the preferences or interests of individuals. For Singer, this theory extends beyond human beings to encompass non-human animals, asserting that the interests of animals should be given equal moral consideration as those of humans. At the heart of Singer's preference utilitarianism is the principle of equal consideration of interests. This principle posits that the suffering and preferences of all beings should be weighed equally, irrespective of species. Singer argues that the ability to suffer or experience pleasure is a relevant criterion for moral consideration, and this capacity is not exclusive to humans. Non-human animals, much like humans, are capable of experiencing pain and pleasure, and thus their preferences should be taken into account when making ethical decisions. Singer’s stance on animal rights challenges traditional anthropocentric views, which place humans at the center of moral consideration. In contrast, his preference utilitarianism advocates for a more inclusive ethical framework. According to this view, the preferences of an animal to avoid pain or to have its basic needs met are just as significant as the preferences of humans. This leads to a radical rethinking of how society should treat animals, especially in contexts like factory farming, scientific experimentation, and the entertainment industry. One of the most important elements of preference utilitarianism is the concept of sentience—the ability to experience sensations, including pain and pleasure. Singer asserts that sentience is the key characteristic that grants an entity moral consideration. It is not