Evidence map›Paper›PMID 38049480›Full record

ArticleNature ecology & evolution2024

The evolution of human altriciality and brain development in comparative context.

Aida Gómez-Robles, Christos Nicolaou, Jeroen B Smaers, Chet C Sherwood

Abstract 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. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Humans are not unique: difficult birth is common in placental mammals.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
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  11. Review
  12. Altricial brains and the evolution of infant vocal learning.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  13. Article
  14. Article
  15. Revisiting "Grandmothers and the Evolution of Human Longevity" 2003 AJHB https://doi.org/10.1002/ajhb.10156.American journal of human biology : the official journal of the Human Biology Council · 2025
    Article
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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

4 authors.

Aida Gómez-RoblesDepartment of Anthropology, University College London, London, UK. a.gomez-robles@ucl.ac.uk.ORCID 0000-0002-8719-2660
Christos NicolaouDepartment of Anthropology, University College London, London, UK.ORCID 0009-0003-8074-0390
Jeroen B SmaersDepartment of Anthropology, Stony Brook University, Stony Brook, NY, USA.ORCID 0000-0003-1741-9839
Chet C SherwoodCenter for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, DC, USA.ORCID 0000-0001-6711-449X

Funding

Comparative Epigenomics of Primate BrainsR01HG011641 · NHGRI · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI KONOPKA, GENEVIEVE, SHERWOOD, CHESTER · 2021 to 2024
$2.4M
NHGRI NIH HHS R01 HG011641
6 · The paper itself

Abstract

Human newborns are considered altricial compared with other primates because they are relatively underdeveloped at birth. However, in a broader comparative context, other mammals are more altricial than humans. It has been proposed that altricial development evolved secondarily in humans due to obstetrical or metabolic constraints, and in association with increased brain plasticity. To explore this association, we used comparative data from 140 placental mammals to measure how altriciality evolved in humans and other species. We also estimated how changes in brain size and gestation length influenced the timing of neurodevelopment during hominin evolution. Based on our data, humans show the highest evolutionary rate to become more altricial (measured as the proportion of adult brain size at birth) across all placental mammals, but this results primarily from the pronounced postnatal enlargement of brain size rather than neonatal changes. In addition, we show that only a small number of neurodevelopmental events were shifted to the postnatal period during hominin evolution, and that they were primarily related to the myelination of certain brain pathways. These results indicate that the perception of human altriciality is mostly driven by postnatal changes, and they point to a possible association between the timing of myelination and human neuroplasticity.

Indexed as

Biological EvolutionHominidaeAdultAnimalsBrainFemaleHumansInfant, NewbornMammalsPlacentaPregnancyPrimates

Identifiers

PMID38049480
PMCPMC10781642

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.