title: Monkeys, girls, boys and toys: a confirmation Letter regarding "Sex differences in toy preferences: striking parallels between monkeys and humans".
authors.forename: Melissa
authors.initials: M
authors.lastname: Hines
authors.forename: Gerianne M
authors.initials: GM
authors.lastname: Alexander
mesh_terms: D000818:Animals; D001288:Attention; D002648:Child; D002755:Choice Behavior; D005260:Female; D006801:Humans; D008253:Macaca mulatta / Q000523:psychology*; D008297:Male; D009042:Motivation; D010988:Play and Playthings; D012727:Sex Characteristics; D012951:Socialization; D013045:Species Specificity