Evidence map›Paper›PMID 22789130›Full record

ArticleBiology direct2012

The manoeuvrability hypothesis to explain the maintenance of bilateral symmetry in animal evolution.

Gábor Holló, Mihály Novák

Open access · goldAbstract read
In one paragraph

Article in Biology direct, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

15 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Subword symmetry in natural languages.Royal Society open science · 2025
    Article
  5. Article
  6. Growth produces coordination trade-offs inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  7. Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Identification of approximate symmetries in biological development.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2021
    Article
  9. Evolutionary transitions in learning and cognition.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
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

2 authors at 2 institutions in 2 countries.

Gábor HollóInstitute of Psychology, University of Debrecen, P.O.B. 28, Debrecen, H, 4010, Hungary. hollo.gabor@arts.unideb.hu
Mihály Novák
HUN-REN Institute for Nuclear Research · HUUniversity of Debrecen · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe overwhelming majority of animal species exhibit bilateral symmetry. However, the precise evolutionary importance of bilateral symmetry is unknown, although elements of the understanding of the phenomenon have been present within the scientific community for decades. PRESENTATION OF THE HYPOTHESIS: Here we show, with very simple physical laws, that locomotion in three-dimensional macro-world space is itself sufficient to explain the maintenance of bilateral symmetry in animal evolution. The ability to change direction, a key element of locomotion, requires the generation of instantaneous "pushing" surfaces, from which the animal can obtain the necessary force to depart in the new direction. We show that bilateral is the only type of symmetry that can maximize this force; thus, an actively locomoting bilateral body can have the maximal manoeuvrability as compared to other symmetry types. This confers an obvious selective advantage on the bilateral animal. IMPLICATIONS OF THE HYPOTHESIS: These considerations imply the view that animal evolution is a highly channelled process, in which bilateral and radial body symmetries seem to be inevitable.

Indexed as

Biological EvolutionAdaptation, PhysiologicalAnimalsBiomechanical PhenomenaBody PatterningBody SizeEnvironmentLocomotionSpecies Specificity

Identifiers

PMID22789130
PMCPMC3438024
OpenAlexW2100925526

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.