ArticleProceedings. Biological sciences2018
Social bonds facilitate cooperative resource sharing in wild chimpanzees.
Article in Proceedings. Biological sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
49 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Social network dynamics under experimental manipulations of predation risk and food abundance in wild rock hyraxes.The Journal of animal ecology · 2026Pooled it
- Freedom of choice supports social complexity in chimpanzees.iScience · 2026Article
- Chimpanzee decisions in the prosocial choice paradigm depending on the position of tokens in the feeder.Animal cognition · 2026Article
- Social interdependencies: the deep evolutionary roots of morality and normativity.Biology & philosophy · 2026Article
- Allied male dolphins use synchronous displays to strengthen social bonds in a cooperative context.Movement ecology · 2025Article
- Fermented fruits: scrumping, sharing, and the origin of feasting.Bioscience · 2025Review
- Article
- The Search for Love in Human Evolution: Primate Social Bonds and a New Science of Emotion.American journal of biological anthropology · 2025Review
- Investigating Changes in Social Networks Following Conflict in Zoo-Housed Bonobos (Pan paniscus).American journal of primatology · 2025Article
- Long-term cooperative relationships among vampire bats are not strongly predicted by their initial interactions.Annals of the New York Academy of Sciences · 2024Article
- Captive chimpanzee shares food with baboons.Current zoology · 2024Article
- Trade-offs between sociality and gastrointestinal parasite infection in the context of a natural disaster.Animal behaviour · 2024Article
- Personality heterophily and friendship as drivers for successful cooperation.Proceedings. Biological sciences · 2024Article
- The proximate regulation of prosocial behaviour: towards a conceptual framework for comparative research.Animal cognition · 2024Review
- The biology of aging in a social world: Insights from free-ranging rhesus macaques.Neuroscience and biobehavioral reviews · 2023Review
- Cooperation increases bottlenose dolphins' (Tursiops truncatus) social affiliation.Animal cognition · 2023Article
- Shared community effects and the non-genetic maternal environment shape cortisol levels in wild chimpanzees.Communications biology · 2023Article
- The biology of aging in a social world:insights from free-ranging rhesus macaques.bioRxiv : the preprint server for biology · 2023Article
- Music production and its role in coalition signaling during foraging contexts in a hunter-gatherer society.Frontiers in psychology · 2023Article
- Puberty initiates a unique stage of social learning and development prior to adulthood: Insights from studies of adolescence in wild chimpanzees.Developmental cognitive neuroscience · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Why share when access to benefits is uncertain is crucial to our understanding of the evolution of humans' extensive cooperation. Here, we investigated some of the different human sharing hypotheses and potential neuroendocrine mechanisms, in one of our closest living relatives, chimpanzees. The strongest predictor of sharing across food types was the presence of enduring and mutually preferred grooming partners, more than harassment, direct signalling, or trade. Moreover, urinary oxytocin levels were higher after the sharing of both individually and jointly acquired resources compared with controls. We conclude that the emotional connection inherent in social bonds was a key factor determining sharing patterns, with the oxytocinergic system potentially facilitating long-term cooperative exchanges. Testing for the role of social bonds in increasing predictability of sharing behaviour, a feature frequently overlooked, may help us to identify the evolutionary drivers of resource sharing and mechanisms that sustain delayed reciprocity between non-kin.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.