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Singer's Animal Ethics: A Moral Revolution?
11 Jul
Summary
- Animal Liberation, published in 1975, became philosophy's bestseller.
- Singer coined 'speciesism' to challenge human prejudice against animals.
- Animal rights activism evolved, from awareness to controversial tactics.

Philosopher Peter Singer, turning 80 in 2026, continues to influence public discourse beyond academia. His 1975 book, "Animal Liberation," stands as the best-selling philosophy text of the 20th century and a foundational work for the animal liberation movement.
Singer's central argument posits that an animal's moral standing hinges on its capacity to suffer, not abstract rights. He introduced the term "speciesism" to denote the prejudice favoring human suffering over that of other species, asserting that causing animal suffering is morally wrong. While Singer's views have remained consistent, the activism inspired by his work has undergone considerable changes.
Archival records reveal a dynamic evolution within animal rights activism. Initially focused on raising awareness of animal experimentation in 1979, the movement saw increasing reports of violent tactics by the mid-1980s. Concurrently, public exposure to vegetarianism grew, foreshadowing today's widespread legal recognition of animal suffering and ubiquitous vegan options on menus.