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Ratcheting up the ratchet: on the evolution of cumulative culture
Some researchers have claimed that chimpanzee and human culture rest on homologous cognitive and learning mechanisms. While clearly there are some homologous mechanisms, we argue here that there areExpand
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Two Key Steps in the Evolution of Human Cooperation
Modern theories of the evolution of human cooperation focus mainly on altruism. In contrast, we propose that humans’ species-unique forms of cooperation—as well as their species-unique forms ofExpand
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Comparing the Performances of Apes (Gorilla gorilla, Pan troglodytes, Pongo pygmaeus) and Human Children (Homo sapiens) in the Floating Peanut Task
Recently, Mendes et al. [1] described the use of a liquid tool (water) in captive orangutans. Here, we tested chimpanzees and gorillas for the first time with the same “floating peanut task.” None ofExpand
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Reply to comments. Two Key Steps in the Evolution of Human Cooperation: The Interdependence Hypothesis
Modern theories of the evolution of human cooperation focus mainly on altruism. In contrast, we propose that humans’ species-unique forms of cooperation—as well as their species-unique forms ofExpand
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Reputation management in the age of the world-wide web
The reciprocal interactions with others that play such a significant part in our lives depend upon trust; individuals need to be confident that their partners are cooperative, and that they willExpand
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Push or Pull: Imitation vs. Emulation in Great Apes and Human Children
All four species of great apes and young human children (12–24 mo of age) were administered an imitation task designed to distinguish between results learning (emulation) and action learningExpand
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Conformity cannot be identified based on population-level signatures
TLDR
Conformist transmission, defined as a disproportionate likelihood to copy the majority, is considered a potent mechanism underlying the emergence and stabilization of cultural diversity. Expand
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Untrained Chimpanzees (Pan troglodytes schweinfurthii) Fail to Imitate Novel Actions
Background Social learning research in apes has focused on social learning in the technical (problem solving) domain - an approach that confounds action and physical information. Successful subjectsExpand
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Social organization and the evolution of cumulative technology in apes and hominins.
Culturally supported accumulation (or ratcheting) of technological complexity is widely seen as characterizing hominin technology relative to that of the extant great apes, and thus as representing aExpand
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An experimental study of nettle feeding in captive gorillas
Mountain gorillas (Gorilla beringei beringei) in Karisoke, Rwanda, feed on the stinging nettle Laportea alatipes by means of elaborate processing skills. Byrne [e.g. Philosophical Transactions of theExpand
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