''Animal Liberation: A New Ethics for Our Treatment of Animals'' is a 1975 book by the Australian philosopher
Peter Singer. It is widely considered within the
animal liberation movement to be the founding philosophical statement of its ideas. Singer himself rejected the use of the theoretical framework of
rights
Rights are law, legal, social, or ethics, ethical principles of freedom or Entitlement (fair division), entitlement; that is, rights are the fundamental normative rules about what is allowed of people or owed to people according to some legal sy ...
when it comes to human and nonhuman animals. Following
, Singer argued that the interests of animals should be considered because of their ability to experience
suffering
Suffering, or pain in a broad sense, may be an experience of unpleasantness or aversion, possibly associated with the perception of harm or threat of harm in an individual. Suffering is the basic element that makes up the negative valence (psyc ...
and that the idea of rights was not necessary in order to consider them. He popularized the term "
speciesism" in the book, which had been coined by
Richard D. Ryder to describe the exploitative treatment of animals.
A revised edition, ''Animal Liberation Now'', was released in 2023.
Summary
Singer allows that
animal rights
Animal rights is the philosophy according to which many or all Animal consciousness, sentient animals have Moral patienthood, moral worth independent of their Utilitarianism, utility to humans, and that their most basic interests—such as ...
are not the same as
human rights
Human rights are universally recognized Morality, moral principles or Social norm, norms that establish standards of human behavior and are often protected by both Municipal law, national and international laws. These rights are considered ...
, writing in ''Animal Liberation'' that "there are obviously important differences between humans and other animals, and these differences must give rise to some differences in the rights that each have."
In ''Animal Liberation'', Singer argues against what he calls
speciesism:
discrimination
Discrimination is the process of making unfair or prejudicial distinctions between people based on the groups, classes, or other categories to which they belong or are perceived to belong, such as race, gender, age, class, religion, or sex ...
on the grounds that a being belongs to a certain species. He holds the interests of all beings capable of suffering to be worthy of
equal consideration and that giving lesser consideration to beings based on their species is no more justified than discrimination based on skin color. He argues that animals' rights should be based on their capacity to feel pain instead of their intelligence. In particular, he argues that while animals show lower intelligence than the average human, many severely intellectually challenged humans show equally diminished, if not lower, mental capacity and that some animals have displayed signs of intelligence (for example, primates learning elements of
American sign language
American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States and most of Anglophone Canadians, Anglophone Canada. ASL is a complete and organized visual language that i ...
and other symbolic languages) sometimes on a par with that of human children. Therefore, intelligence does not provide a basis for giving nonhuman animals any less consideration than such intellectually challenged humans.
Singer concludes that the most practical solution is to adopt a
vegetarian
Vegetarianism is the practice of abstaining from the Eating, consumption of meat (red meat, poultry, seafood, insects as food, insects, and the flesh of any other animal). It may also include abstaining from eating all by-products of animal slau ...
or
vegan
Veganism is the practice of abstaining from the use of animal products and the consumption of animal source foods, and an associated philosophy that rejects the commodity status of animals. A person who practices veganism is known as a ve ...
diet. He also condemns
vivisection except where the benefit (in terms of improved medical treatment, etc.) outweighs the harm done to the animals used.
Reception
Activist
Ingrid Newkirk wrote of ''Animal Liberation'', "It forever changed the conversation about our treatment of animals. It made people—myself included—change what we ate, what we wore, and how we perceived animals." Other activists who claim that their attitudes to animals changed after reading the book include
Peter Tatchell and
Matt Ball.
Singer has expressed regret that the book did not have more impact. In September 1999, he was quoted by Michael Specter in ''
The New Yorker
''The New Yorker'' is an American magazine featuring journalism, commentary, criticism, essays, fiction, satire, cartoons, and poetry. It was founded on February 21, 1925, by Harold Ross and his wife Jane Grant, a reporter for ''The New York T ...
'' on the book's impact:
:It's had effects around the margins, of course, but they have mostly been minor. When I wrote it, I really thought the book would change the world. I know it sounds a little grand now, but at the time the
sixties still existed for us. It looked as if real changes were possible, and I let myself believe that this would be one of them. All you have to do is walk around the corner to McDonald's to see how successful I have been.
[Michael Specter,]
The Dangerous Philosopher
, ''The New Yorker
''The New Yorker'' is an American magazine featuring journalism, commentary, criticism, essays, fiction, satire, cartoons, and poetry. It was founded on February 21, 1925, by Harold Ross and his wife Jane Grant, a reporter for ''The New York T ...
'', 6 September 1999
The book has also received critical challenges to the utilitarian underpinnings of his theory towards animal rights. In ''
Slate'', published in 2001,
Richard Posner wrote that Singer failed to see the "radicalism of the ethical vision that powers
isview on animals, an ethical vision that finds greater value in a healthy pig than in a profoundly intellectually challenged child, that commands inflicting a lesser pain on a human being to avert a greater pain to a dog, and that, provided only that a chimpanzee has 1 percent of the mental ability of a normal human being, would require the sacrifice of the human being to save 101 chimpanzees." Singer replied to and rejected this claim, engaging in a lengthy debate with Posner.
[ Links to individual letters of the debate on the ''Slate'' website: First letter; Singer to Posner, June 12, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-2.html; second letter, Posner to Singer, June 12, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-3.html; third letter, Singer to Posner, June 13, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-4.html; fourth letter, Posner to Singer, June 13, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-5.htm; fifth letter, Singer to Posner, June 13, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-6.html; sixth letter, Posner to Singer, June 14, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-7.html; seventh letter, Singer to Posner June 14, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-8.html; eighth letter, Posner to Singer, June 14, 2001: https://slate.com/news-and-politics/2001/06/animal-rights-9.html]
In addition,
Martha Nussbaum has argued that the
capability approach provides a more adequate foundation of justice than Utilitarianism can supply.
Utilitarianism
In ethical philosophy, utilitarianism is a family of normative ethical theories that prescribe actions that maximize happiness and well-being for the affected individuals. In other words, utilitarian ideas encourage actions that lead to the ...
, Nussbaum argues, ignores adaptive preferences, elides the separateness of distinct persons, misidentifies valuable human/non-human emotions such as
grief
Grief is the response to the loss of something deemed important, particularly to the death of a person to whom or animal to which a Human bonding, bond or affection was formed. Although conventionally focused on the emotional response to loss, ...
, and calculates according to "sum-rankings" rather than inviolable protection of intrinsic entitlements.
The moral philosopher
Roger Scruton criticised Singer's works, including ''Animal Liberation'', saying that they "contain little or no philosophical argument. They derive their radical moral conclusions from a vacuous utilitarianism that counts the pain and pleasure of all living things as equally significant and that ignores just about everything that has been said in our philosophical tradition about the real distinction between persons and animals."
[Scruton, Roger]
"Animal Rights"
, ''City Journal'', summer 2000.
*Scruton (1998).
Personal background
In the essay "Animal Liberation: A Personal View", Singer describes the personal background that led to his adoption of the views he sets out in ''Animal Liberation''. His interest was sparked following a lunch in 1970 with a fellow Oxford graduate student, Richard Keshen, who avoided meat. This led Singer to inquire as to why and then to read
Ruth Harrison's book, ''Animal Machines'', as well as a paper by Roslind Godlovitch (who would later co-edit ''
Animals, Men and Morals''), which convinced him to become a vegetarian and to take
animal suffering seriously as a philosophical issue.
''Animal Liberation Now''
A revised edition, titled ''Animal Liberation Now: The Definitive Classic Renewed'', was released on 23 May 2023, featuring a new foreword by
Yuval Noah Harari. Two-thirds of the book consists of entirely new material, and it also documents changes in
animal welfare
Animal welfare is the quality of life and overall well-being of animals. Formal standards of animal welfare vary between contexts, but are debated mostly by animal welfare groups, legislators, and academics. Animal welfare science uses measures ...
since the book's original publication, along with other developments, such as the
impact of meat consumption on climate and on the
risk of spreading dangerous new viruses.
See also
* ''
The Case for Animal Rights''
*
Tom Regan
*
List of vegan and plant-based media
References
{{Authority control
1975 non-fiction books
Books about animal rights
Books about animal testing
Books by Peter Singer
English-language non-fiction books
Ethics books
HarperCollins books
Vegetarian-related mass media
Works about utilitarianism