Koko nipple fixiation rule - Lemmy.world

https://en.wikipedia.org/wiki/Koko_(gorilla)#Nipple_fixation [https://en.wikipedia.org/wiki/Koko_(gorilla)#Nipple_fixation] I learned about this today. I already knew a few stories about her, how she liked kittens und Robin Williams. The nipple story makes her seem more relatable.