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Good Natured: The Origins of Right and Wrong in Humans and Other Animals
Prologue Darwinian Dilemmas Survival of the Unfittest Biologicizing Morality Calvinist Sociobiology A Broader View The Invisible Grasping Organ Ethology and Ethics Photo Essay: Closeness SympathyExpand
Reconciliation and Redirected Affection in Rhesus Monkeys
The question whether rhesus monkeys reconcile was empirically translated as: Do they seek non-agonistic contact with former adversaries? The study concerned a captive group of forty-one monkeys,Expand
Conformity to cultural norms of tool use in chimpanzees
Rich circumstantial evidence suggests that the extensive behavioural diversity recorded in wild great apes reflects a complexity of cultural variation unmatched by species other than our own.Expand
Food sharing and reciprocal obligations among chimpanzees
Food sharing has been proposed as the propeller of hominid evolution, particularly of the development of systems of mutual social obligation. Yet, food sharing in our closest relative has never beenExpand
Monkeys reject unequal pay
During the evolution of cooperation it may have become critical for individuals to compare their own efforts and pay-offs with those of others. Negative reactions may occur when expectations areExpand
The Communicative Repertoire of Captive Bonobos (Pan Paniscus), Compared To That of Chimpanzees
Ten bonobos (Pan paniscus), housed in three separate subgroups at the San Diego Zoological Garden, were observed for 288 hours over a four-month period. The colony included one adult male, two adultExpand
Peacemaking among primates
Does biology condemn the human species to violence and war? Previous studies of animal behavior incline us to answer yes, but the message of this book is considerably more optimistic. Without denyingExpand
Consolation, reconciliation, and a possible cognitive difference between macaques and chimpanzees
motivated to interact with them, and have no need to establish a truce. Although rooks do not reconcile after conflicts, they do perform affiliative interactions, such as bill-twining, with theirExpand
Mechanisms of social reciprocity in three primate species: Symmetrical relationship characteristics or cognition?
Abstract Agonistic intervention behavior was observed in captive groups of chimpanzees ( Pan troglodytes ), rhesus monkeys ( Macaca mulatta ), and stumptail monkeys ( M. arctoides ). ReciprocityExpand
Transmission of Multiple Traditions within and between Chimpanzee Groups
Field reports provide increasing evidence for local behavioral traditions among fish, birds, and mammals. These findings are significant for evolutionary biology because social learning affordsExpand