Evidence map›Paper›PMID 38977833›Full record

ArticleNature ecology & evolution2024

Co-evolutionary dynamics of mammalian brain and body size.

Chris Venditti, Joanna Baker, Robert A Barton

Erratum issuedAbstract read
In one paragraph

Article in Nature ecology & evolution, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Competing models of hominin body size evolution.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. The "fire of life cycles": age-specific metabolic scaling within and among species.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
    Review
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  9. The fish challenge to vertebrate cognitive evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  10. Embodied cognitive evolution and the limits of convergence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  11. Proximate mechanisms underlying the coevolution of diet quality and relative brain size in primates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Chris VendittiSchool of Biological Sciences, University of Reading, Reading, UK. c.d.venditti@reading.ac.uk.ORCID http://orcid.org/0000-0002-6776-2355
Joanna BakerSchool of Biological Sciences, University of Reading, Reading, UK.ORCID http://orcid.org/0000-0003-4904-6934
Robert A BartonDepartment of Anthropology, Durham University, Durham, UK. r.a.barton@durham.ac.uk.ORCID http://orcid.org/0000-0002-2150-9637

Funding

Leverhulme Trust RL-2019-012
6 · The paper itself

Abstract

Despite decades of comparative studies, puzzling aspects of the relationship between mammalian brain and body mass continue to defy satisfactory explanation. Here we show that several such aspects arise from routinely fitting log-linear models to the data: the correlated evolution of brain and body mass is in fact log-curvilinear. This simultaneously accounts for several phenomena for which diverse biological explanations have been proposed, notably variability in scaling coefficients across clades, low encephalization in larger species and the so-called taxon-level problem. Our model implies a need to revisit previous findings about relative brain mass. Accounting for the true scaling relationship, we document dramatically varying rates of relative brain mass evolution across the mammalian phylogeny, and we resolve the question of whether there is an overall trend for brain mass to increase through time. We find a trend in only three mammalian orders, which is by far the strongest in primates, setting the stage for the uniquely rapid directional increase ultimately producing the computational powers of the human brain.

Indexed as

Biological EvolutionBody SizeBrainMammalsAnimalsHumansModels, BiologicalOrgan SizePhylogeny

Identifiers

PMID38977833
PMCPMC11310075

What OpenQuestion holds

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Registered trials

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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.