Alfred Rupert Sheldrake is an English author, lecturer, and researcher in the field of parapsychology, known for his proposed theory of morphic resonance. He worked as a biochemist and cell biologist at Cambridge University from 1967 to 1973 and as principal plant physiologist at the International Crops Research Institute for the Semi-Arid Tropics until 1978. Since leaving research biology, he has devoted his time primarily to morphic resonance, in books, articles, and public appearances.