“Et interessant spørgsmål kunne være om drenge leger med biler og kvinder leger med dukker som følge af sociale adfærdsmønstre som vi er blevet påduttet siden vi var små? ” – Tarek Ghanoum
”Male monkeys, like boys, showed consistent and strong preferences for wheeled toys, while female monkeys, like girls, showed greater variability in preferences. Thus, the magnitude of preference for wheeled over plush toys differed significantly between males and females. The similarities to human findings demonstrate that such preferences can develop without explicit gendered socialization.”
Kilde: Sex differences in rhesus monkey toy preferences parallel those of children