Two psychologists, Luella and Winthrop Kellogg gave birth to a Son they called Donald. They decided to raise their child with a chimpanzee called Gua, in an experiment to determine the effect of the environment on the development of chimpanzees and the possibility of humanizing the chimp.
This experiment was started when Gua was 7 months and Donald, 10 months old. They were raised like siblings, they ate the same time, wore the same cloth, had the same toys, and slept the same place.
As the experiment progressed, Donald started copying Gua, making the sounds of a Chimp and also walked like one. Gradually he was becoming a feral child. This prompted the termination of the experiment as they had expected Gua to imitate Donald, not the opposite.The experiment had a long-lasting effect on Donald who killed himself at the age of 43. While Gua died a year after she was separated from Donald.
