Evidence map›Paper›PMID 37142584›Full record

ArticleNature communications2023

Call combinations and compositional processing in wild chimpanzees.

Maël Leroux, Anne M Schel, Claudia Wilke, Bosco Chandia, Klaus Zuberbühler, Katie E Slocombe, Simon W Townsend

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
24.5field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 93 citations in OpenAlex.

  1. Utterance evolution: the road to generative, combinatorial communicators.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
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  3. The As and Bs of titi monkey linguistics: why emotional communication is not the enemy.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 4 countries.

Maël LerouxDepartment of Comparative Language Science, University of Zürich, Zürich, Switzerland. maelmaodez.leroux@gmail.com.ORCID 0000-0001-7087-449X
Anne M SchelAnimal Behaviour and Cognition, Utrecht University, Utrecht, Netherlands.
Claudia WilkeDepartment of Comparative Language Science, University of Zürich, Zürich, Switzerland.
Bosco ChandiaBudongo Conservation Field Station, Masindi, Uganda.
Klaus ZuberbühlerBudongo Conservation Field Station, Masindi, Uganda.
Katie E SlocombeDepartment of Psychology, University of York, York, UK.
Simon W TownsendDepartment of Comparative Language Science, University of Zürich, Zürich, Switzerland.ORCID 0000-0003-1504-1801
University of Zurich · CHUniversity of St Andrews · GBUniversity of York · GBUtrecht University · NLZurich University of Applied Sciences in Business Administration · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Through syntax, i.e., the combination of words into larger phrases, language can express a limitless number of messages. Data in great apes, our closest-living relatives, are central to the reconstruction of syntax's phylogenetic origins, yet are currently lacking. Here, we provide evidence for syntactic-like structuring in chimpanzee communication. Chimpanzees produce "alarm-huus" when surprised and "waa-barks" when potentially recruiting conspecifics during aggression or hunting. Anecdotal data suggested chimpanzees combine these calls specifically when encountering snakes. Using snake presentations, we confirm call combinations are produced when individuals encounter snakes and find that more individuals join the caller after hearing the combination. To test the meaning-bearing nature of the call combination, we use playbacks of artificially-constructed call combinations and both independent calls. Chimpanzees react most strongly to call combinations, showing longer looking responses, compared with both independent calls. We propose the "alarm-huu + waa-bark" represents a compositional syntactic-like structure, where the meaning of the call combination is derived from the meaning of its parts. Our work suggests that compositional structures may not have evolved de novo in the human lineage, but that the cognitive building-blocks facilitating syntax may have been present in our last common ancestor with chimpanzees.

Indexed as

Pan troglodytesVocalization, AnimalAggressionAnimalsHumansLanguagePhylogenySnakes

Identifiers

PMID37142584
PMCPMC10160036
OpenAlexW4372336866

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.