Great apes' risk-taking strategies in a decision making task

Daniel B. M. Haun*, Christian Nawroth, Josep Call

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

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.

Original languageEnglish
Article number28801
Number of pages6
JournalPLoS One
Volume6
Issue number12
DOIs
Publication statusPublished - 21 Dec 2011

Keywords

  • Chimpanzees Pan-Troglodytes
  • Reversed-Contingency Task
  • Gorilla-Gorilla Perform
  • Pongo-Pygmaeus
  • Tool Use
  • Wild Chimpanzees
  • Rhesus Macaques
  • Macaca-Mulatta
  • Quantity
  • Orangutans

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