Sandra the orangutan now lives in a Florida sanctuary, recognized by one court as a person. The pig in the gestation crate remains, by any legal definition, a thing. The distance between these two animals is not measured in species or intelligence, but in the moral imagination of the species that holds all the power. The future of animal welfare and rights depends on how far we are willing to stretch that imagination. The question is not, Can they reason? nor, Can they talk? but, Can they suffer? — Jeremy Bentham, 1789
asks: Given that we use animals for human purposes (food, research, entertainment, clothing), how can we ensure they experience the least amount of suffering possible during their lives and at the time of death? Sandra the orangutan now lives in a Florida
The paradigm shift began in the 1970s with the publication of Peter Singer’s Animal Liberation (1975). Singer, a utilitarian philosopher, did not argue for "rights" in the legal sense. Instead, he applied the principle of . If a being can suffer, he argued, its suffering matters as much as an identical amount of suffering experienced by a human. To ignore that suffering simply because the being is not Homo sapiens is "speciesism"—a prejudice analogous to racism or sexism. The future of animal welfare and rights depends