Primates are known to have considerable knowledge about the social relationships that link their group mates and are likely to derive this information from observing the social interactions that occur in their social group. They may, therefore, be hypothesized to pay particular attention to the social interactions involving group mates. In this study, we evaluated how the attention captive mandrills (Mandrillus sphinx) devote to their group mates was modulated by the behavior of the latter. Mandrills looked most frequently at foraging individuals and least frequently at sleeping individuals. Mandrills also looked at grooming individuals more than at individuals that were simply sitting in contact. Grooming dyads were looked at regardless of the social rank and kinship of the individuals involved. These results contribute to our understanding of how primates obtain their social knowledge.

中文翻译：

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监视队友在山d中的行为。

众所周知，灵长类动物对链接其同伴的社交关系有相当多的了解，并且很可能通过观察在其社交群体中发生的社交互动来获得此信息。因此，可以假设他们要特别注意与队友有关的社交互动。在这项研究中，我们评估了注意力圈养山d（Mandrillus sphinx）献给其同伴的行为如何受到后者行为的调节。山d最常觅食个体，最不常看着沉睡的个体。Mandrills还着眼于修饰个人，而不是单纯地保持联系的个人。无论所涉个人的社会地位和血缘关系如何，都要研究修饰双体。