Richard Hood Jack Dudley Ryder (born 1940) is a British writer and psychologist. In 1969 he became involved with animal rights; he protested against an otter hunt in Dorset. In 1970 he made a new word, "speciesism". He used it in a pamphlet called "Speciesism". It is now in the Oxford Dictionary. Ryder made a theory called painism in 1990. In 2001 a book that Ryder wrote about his theory of painism was published. It was called "Painism: A Modern Morality". Painism is the idea that any being that feels pain deserves rights.