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Related Experiment Videos

Chimpanzees share forbidden fruit.

Kimberley J Hockings1, Tatyana Humle, James R Anderson

  • 1Department of Psychology, University of Stirling, Stirling, Scotland. k.j.hockings@stir.ac.uk

Plos One
|September 13, 2007
PubMed
Summary
This summary is machine-generated.

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Chimpanzees at Bossou regularly share cultivated plant foods, unlike wild plant food sharing. This behavior, mainly by males to females, may involve

Area of Science:

  • Primatology
  • Ethology
  • Behavioral Ecology

Background:

  • Wild chimpanzee food sharing is rare, especially for plant foods.
  • Meat is often shared as a social tool in hunting chimpanzee communities.
  • Previous studies highlight meat sharing, but plant food sharing is less understood.

Purpose of the Study:

  • To document and analyze regular plant food sharing in a wild chimpanzee population.
  • To investigate the contexts and social dynamics of plant food sharing.
  • To explore potential evolutionary explanations for observed sharing behaviors.

Main Methods:

  • Direct observational data collection at Bossou, Republic of Guinea.
  • Recording instances of food transfer between unrelated, non-provisioned chimpanzees.

Related Experiment Videos

  • Analyzing the types of food shared and the social relationships involved.

    • Main Results:

    • Wild plant food sharing was infrequent.
    • Cultivated plant food sharing was frequent (58 out of 59 events).
    • Sharing predominantly involved adult males providing food to reproductively cycling females.

    Conclusions:

    • Observed plant food sharing at Bossou is a unique behavior among wild chimpanzees.
    • 'Food-for-sex,' 'food-for-grooming,' and 'showing-off' hypotheses may explain these behaviors.
    • Crop-raiding provides valuable food resources that may function as trade commodities.