The Soviet Scientist Who Sought a Human-Chimp Hybrid and Paid the Price

Ilia Ivanov, a Soviet zoologist, pursued a radical human-ape hybrid project, conducting experiments in Guinea and later in the Soviet Union that included implanting a human ovary in a chimp and attempting to inseminate chimpanzees with human sperm; none of the efforts succeeded due to chromosome incompatibilities, drawing backlash from the Kremlin and international press, leading to his arrest, exile, and eventual death in Kazakhstan. The episode highlights the ethical risks of extreme hybridization research and the ways politics and racism influenced science.