It's not a research paper, it's a summary article on the university website. What's more, and someone Dutch can correct me, I believe the distinction doesn't exist there in the same way, it's all 'apen', so it's more an error in translation than anything else.
schlabberbacke t1_j4utvl0 wrote
Reply to comment by TheArcticFox444 in Bonobos, unlike humans, are more interested in the emotions of strangers than acquaintances by giuliomagnifico
It's not a research paper, it's a summary article on the university website. What's more, and someone Dutch can correct me, I believe the distinction doesn't exist there in the same way, it's all 'apen', so it's more an error in translation than anything else.