Cannibalism has been observed in a variety of animal taxa; however, it is relatively uncommon in primates. Thus, we rely heavily on case reports of this behavior to advance our understanding of the contexts under which it occurs. Here, we report the first observation of cannibalism in a group of wild white‐faced capuchin monkeys (Cebus imitator). The subject was a dead infant, estimated to be 10 days old, and the probable victim of infanticide. Consumption of the corpse was initiated by a 2‐year‐old male (second cousin of the infant), though it was eventually taken over and monopolized by the group's alpha female (grandaunt of the infant). Although most group members expressed interest in the corpse (sniffing, touching, and threatening it), no others made an attempt to consume it. Given that this is the only observation of cannibalism recorded in over 37 years of study on this population, we consider it to be a rare behavior in this species. This detailed record contributes new data, which, when combined with other reports within and across species and contexts, enables the evaluation of adaptive explanations of cannibalism.

中文翻译：

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野生白面卷尾猴的婴儿食人症

在各种动物分类中都发现了食人症。然而，在灵长类动物中却很少见。因此，我们在很大程度上依赖于此行为的案例报告，以加深我们对该行为发生的上下文的理解。在这里，我们报告了在一群野生的白面卷尾猴（Cebus模仿者）。该受试者是一名死亡婴儿，估计为10天大，可能是杀婴的受害者。尸体的消耗是由一名2岁的男性（婴儿的第二个表亲）发起的，尽管最终由该组织的alpha女性（婴儿的gr徒）接管并垄断。尽管大多数小组成员都表示对尸体感兴趣（嗅，触摸和威胁尸体），但没有其他人尝试食用该尸体。鉴于这是37年来对这种种群进行食人行为的唯一记录，因此我们认为在该物种中这种行为是罕见的。这个详细的记录提供了新的数据，当与物种和环境内和跨物种和环境的其他报告结合使用时，就可以评估食人性的适应性解释。