Winthrop Kellogg Raised Chimpanzee Gua

In the 1930s, psychologist Winthrop Kellogg adopted a chimpanzee named Gua and raised her alongside his infant son, Donald Kellogg. He designed the experiment to see whether a chimpanzee could develop human-like behavior and intelligence if given the same upbringing as a human child. Gua learned many household behaviors and initially kept pace with Donald in several tasks. However, she eventually reached a cognitive limit that training and nurturing could not overcome.

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