Document Detail

Theft in an ultimatum game: chimpanzees and bonobos are insensitive to unfairness.
MedLine Citation:
PMID:  22896269     Owner:  NLM     Status:  MEDLINE    
Humans, but not chimpanzees, punish unfair offers in ultimatum games, suggesting that fairness concerns evolved sometime after the split between the lineages that gave rise to Homo and Pan. However, nothing is known about fairness concerns in the other Pan species, bonobos. Furthermore, apes do not typically offer food to others, but they do react against theft. We presented a novel game, the ultimatum theft game, to both of our closest living relatives. Bonobos and chimpanzee 'proposers' consistently stole food from the responders' portions, but the responders did not reject any non-zero offer. These results support the interpretation that the human sense of fairness is a derived trait.
Ingrid Kaiser; Keith Jensen; Josep Call; Michael Tomasello
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2012-08-15
Journal Detail:
Title:  Biology letters     Volume:  8     ISSN:  1744-957X     ISO Abbreviation:  Biol. Lett.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-13     Completed Date:  2013-03-05     Revised Date:  2014-01-10    
Medline Journal Info:
Nlm Unique ID:  101247722     Medline TA:  Biol Lett     Country:  England    
Other Details:
Languages:  eng     Pagination:  942-5     Citation Subset:  IM    
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MeSH Terms
Choice Behavior / physiology
Game Theory*
Games, Experimental
Models, Psychological
Pan paniscus / physiology*
Pan troglodytes / physiology*
Social Behavior*
Species Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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