Guarda Streamingcommunity. "Orango" - prologue to an unfinished opera by Dmitri Shostakovich (1906-1975), conducted by Esa-Pekka Salonen, performed by the Finnish Radio Symphony Orchestra and the Mariinsky Theatre Academy. In the 1920s, Soviet biologist Ilya Ivanovich Ivanov carried out a series of experiments to create a human/nonhuman ape hybrid. Three female chimpanzees were inseminated with human sperm. No pregnancy occurred.. In 1929 he organized a set of experiments involving nonhuman ape sperm and human volunteers, but was delayed by the death of his last orangutan.