Speciesism (/ˈspiːʃiːˌzɪzəm, -siːˌzɪz-/) is a term used in philosophy regarding the treatment of individuals of different species. The term has several different definitions within the relevant literature.[1] Some sources specifically define speciesism as discrimination or unjustified treatment based on an individual's species membership,[2][3][4] while other sources define it as differential treatment without regard to whether the treatment is justified or not. https://en.wikipedia.org/wiki/Speciesism