Baby raised with chimp 'sister' in sick study started acting like ape before tragic end
![Baby raised with chimp 'sister' in sick study started acting like ape before tragic end](https://i2-prod.dailystar.co.uk/incoming/article25214754.ece/ALTERNATES/s615/0_Screenshot_2021_10_14_112731.jpg)
WARNING, DISTRESSING CONTENT: The experiment was stopped after nine months when it became clear that Donald was acting more like an ape than a human. But the damage may have already been done