Comment Comment by okusername There is research showing male rhesus monkeys to have preference for wheeled toyshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2583786/We shouldn't discount possible genetic influences on preferences. parent okusername 7 years ago
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2583786/
We shouldn't discount possible genetic influences on preferences.