Speciesism is a term used in philosophy and animal ethics for the treatment of individuals according to their species membership. The term has several definitions. Some writers define it as discrimina
The differential treatment of cattle and dogs is an example often discussed in relation to speciesism. Some philosophers argue that members of the two species have similar interests and should receive equal consideration, yet in many cultures cattle are considered livestock and are exempt from most animal cruelty laws, while the same cultures consider dogs companion animals and give them more protections, such as laws against using dogs as draft animals.
Henry S. Salt criticized the idea of a "great gulf" between humans and other animals.
Richard D. Ryder coined the term "speciesism" in 1970.
Peter Singer popularized the idea in Animal Liberation (1975).
Peter Albert David Singer is an Australian moral philosopher who is Emeritus Ira W. DeCamp Professor of Bioethics at Princeton University. Singer's work specialises in applied ethics, approaching the
Speciesism
…from natural processes. The term first appeared in 1970 in a pamphlet by Ryder protesting against animal experimentation. It was later popularized by Peter Singer in Animal Liberation (1975). Other writers associated with the concept include Oscar Horta, Steven M. Wise, Gary L. Francione, Melanie Joy, David Nibert…
Singer at an effective altruism conference in Melbourne in 2015
Singer in São Paulo in 2013