期刊
ROYAL SOCIETY OPEN SCIENCE
卷 8, 期 3, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rsos.201688
关键词
cooperation; instrumental helping; altruism; chimpanzees; bonobos
资金
- European Research Council (ERC) under the European Union [609819-SOMICS]
Comparing the prosocial behavior of chimpanzees and bonobos, it was found that bonobos were more likely to transfer tools without benefiting, indicating a greater ability to understand social problems and the collaborative nature of tasks.
Directly comparing the prosocial behaviour of our two closest living relatives, bonobos and chimpanzees, is essential to deepening our understanding of the evolution of human prosociality. We examined whether helpers of six dyads of chimpanzees and bonobos transferred tools to a conspecific. In the experiment 'Helping', transferring a tool did not benefit the helper, while in the experiment 'Cooperation', the helper only obtained a reward by transferring the correct tool. Chimpanzees did not share tools with conspecifics in either experiment, except for a mother-daughter pair, where the mother shared a tool twice in the experiment 'Helping'. By contrast, all female-female bonobo dyads sometimes transferred a tool even without benefit. When helpers received an incentive, we found consistent transfers in all female-female bonobo dyads but none in male-female dyads. Even though reaching by the bonobo receivers increased the likelihood that a transfer occurred, we found no significant species difference in whether receivers reached to obtain tools. Thus, receivers' behaviour did not explain the lack of transfers from chimpanzee helpers. This study supports the notion that bonobos might have a greater ability to understand social problems and the collaborative nature of such tasks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据