... facilities may improve wild vervet monkeys’ technical skills in a social learning task using the ‘artificial fruit’ approach. Two of our 6 study groups had access to human facilities within their territories. Only members of these 2 groups were likely to open successfully ‘artificial fruit’ during...

..., based on uterine contact and nearness, while non-uterine proximity is not significantly differentiated on the basis of matrilineal dominance. Vervet monkeys Social spacing Proximity Longitudinal studies Status hierarchy Polynomial regression Age changes Gender differences © 1980 S. Karger...

...D.L. Cheney High-ranking vervet monkeys threatened the members of other groups more than did low-ranking individuals, while only low-ranking females and juvenile males interacted affinitively with the members of other groups. Adult males were most aggressive during intergroup encounters with groups...