Originally Posted by Lacrymas
Monkeys don't prefer anything, seriously.

Sex differences in rhesus monkey toy preferences parallel those of children

Born This Way? Gender-Based Toy Preferences in Primates


Originally Posted by Lacrymas
Monkeys and babies don't even have a concept of "trucks" and "dolls" to prefer one or the other.

Toddlers do, and can choose one over the other without their parents or society deciding which they should like.