14. The Humanzee Experiments
In the 1920s, Soviet scientist Ilya Ivanov attempted to create a human-chimpanzee hybrid by inseminating female chimpanzees with human sperm. Despite his efforts, the experiments were unsuccessful, and no hybrid offspring were produced. The project raised significant ethical and scientific questions, particularly regarding the treatment of both human and animal subjects. Ivanov’s work remains a controversial chapter in the history of genetics and bioethics. (smithsonianmag.com)