, a modern utilitarian, radicalized Bentham in his seminal work, Animal Liberation (1975). Singer argues for the principle of equal consideration of interests . A pig's interest in avoiding pain is identical to a human's interest; therefore, ignoring pig pain because of species is "speciesism"—a prejudice as irrational as racism or sexism. While Singer is often called the father of the animal rights movement, he is technically a welfare reformer who supports incremental improvements while eventually advocating for abolition.
Humans have higher cognitive capacities (morality, language, abstraction). Therefore, human interests always trump animal interests. Rebuttal: If intelligence is the metric, then human infants and the severely cognitively disabled would also have zero moral value. , a modern utilitarian, radicalized Bentham in his
, the father of utilitarianism, laid the groundwork for welfare. He famously wrote: "The question is not, Can they reason ? nor, Can they talk ? but, Can they suffer ?" For Bentham, suffering was the moral currency. If an animal suffers, that suffering matters, but it can be weighed against human benefits. While Singer is often called the father of
However, the two camps share a common enemy: . The most urgent reality is that 70 billion land animals are slaughtered annually for human consumption, and countless billions more live in conditions that meet the legal definition of torture. Rebuttal: If intelligence is the metric, then human
Inuit seal hunting, Japanese whaling, and Indigenous subsistence farming are traditions. Imposing Western animal rights standards is colonialist. Rebuttal: Advocates distinguish between subsistence (survival) and commercial (luxury) killing. They argue that tradition does not justify cruelty, though they acknowledge the need for cultural sensitivity.