Now showing items 1-10 of 21
Inferences about food location in three cercopithecine species : an insight into the socioecological cognition of primates
(2015-07) - Journal article
Many animal species use a variety of cognitive strategies to locate food resources. One strategy is to make inferences by exclusion, i.e., perceiving the absence of reward as a cue that another location should be investigated. ...
Chimpanzees’ understanding of social leverage
(2018-12-12) - Journal article
Social primates can influence others through the control of resources. For instance, dominant male chimpanzees might allow subordinates access to mate with females in exchange for social support. However, little is known ...
Social manipulation in nonhuman primates: cognitive and motivational determinants
(2017-11) - Journal item
Social interactions are the result of individuals’ cooperative and competitive tendencies expressed over an extended period of time. Although social manipulation, i.e., using another individual to achieve one’s own goals, ...
Thirty years of great ape gestures
(2018-02-21) - Journal article
We and our colleagues have been doing studies of great ape gestural communication for more than 30 years. Here we attempt to spell out what we have learned. Some aspects of the process have been reliably established by ...
Chimpanzees, bonobos and children successfully coordinate in conflict situations
(2017-06-14) - Journal article
Social animals need to coordinate with others to reap the benefits of group-living even when individuals' interests are misaligned. We compare how chimpanzees, bonobos and children coordinate their actions with a conspecific ...
Chimpanzees (Pan troglodytes) Flexibly Adjust Their Behaviour in Order to Maximize Payoffs, Not to Conform to Majorities
(2013-11-27) - Journal article
Chimpanzees have been shown to be adept learners, both individually and socially. Yet, sometimes their conservative nature seems to hamper the flexible adoption of superior alternatives, even to the extent that they persist ...
Information seeking about tool properties in great apes
(2017-09-07) - Journal article
Evidence suggests that great apes engage in metacognitive information seeking for food items. To support the claim that a domain-general cognitive process underlies ape metacognition one needs to show that selective ...
Time-space–displaced responses in the orangutan vocal system
(2018-11-14) - Journal article
One of the defining features of language is displaced reference—the capacity to transmit information about something that is not present or about a past or future event. It is very rare in nature and has not been shown in ...
Reply to 'Chimpanzee helping is real, not a byproduct'
(2018-02-12) - Journal item
Differences in the ability of apes and children to instruct others using gestures
(2015) - Journal article
In all human cultures, people gesture iconically. However, the evolutionary basis of iconic gestures is unknown. In this study, chimpanzees and bonobos, and 2- and 3-year-old children, learned how to operate two apparatuses ...