Speciesism is the differing treatment or moral consideration of individuals based on their species In short, it is the prejudice or discrimination based on species.It involves treating members of one species as morally more important than members of other species in the context of their similar interests. Some definitions of speciesism also requirethat the treatment be unjustified as part of the term's definition,whereas others define it as differential treatment without regard to whether the treatment is justified or not. Many philosophers argue that the differential treatment of cows and dogs is an example of speciesism. They argue that members of the two species share similar interests and should be given equal consideration as a result, yet in many cultures cows are used as livestock and killed for food, while dogs are treated as companion animals.