In the 1960s and 70s, a group of chimpanzees astonished the world by learning sign language. Only two remain and one question ...
Luella and Winthrop Niles Kellogg believed they could use their own child in a chilling experiment involving a chimpanzee. Toddler Donald Kellogg was just 10 months old when he became one of the ...
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Horrifying results after scientist parents raise toddler with chimp in chilling experiment
Luella and Winthrop Niles Kellogg believed they could use their own child in a chilling experiment involving a chimpanzee. Toddler Donald Kellogg was just 10 months old when he became one of the ...
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