 The view that only humans are morally considered is sometimes referred to as “speciesism”. In the 1970s, Richard Ryder coined this term while campaigning in Oxford to denote a ubiquitous type of human centered prejudice, which he thought was similar to racism. He objected to favoring one’s own species, while exploiting or harming members of other species. Peter Singer popularized the term and focused on the way speciesism, without moral justification, favors the interests of humans: 