Great apes' risk-taking strategies in a decision making task.
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- Record sourced from PubMed, PMID 22216113.
- Also identified by DOI 10.1371/journal.pone.0028801 and PMC identifier PMC1626214.
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Abstract
We investigate decision-making behaviour in all four non-human great ape species. Apes chose between a safe and a risky option across trials of varying expected values. All species chose the safe option more often with decreasing probability of success. While all species were risk-seeking, orangutans and chimpanzees chose the risky option more often than gorillas and bonobos. Hence all four species' preferences were ordered in a manner consistent with normative dictates of expected value, but varied predictably in their willingness to take risks.