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When a bigger brain is better: The case of bee olfactory learning.

Overview

Authors: Coline Monchanin1,2, Tamara Gómez-Moracho1,3,4, Cristian Pasquaretta1, Alexis Buatois5, Louise Bestea1, Paul Marchal6,7, Philipp D. Lösel8, Renaud Lebrun9, Fabrice Lihoreau9, Andrew B. Barron2, Jean-Marc Devaud1,10, Mathieu Lihoreau1
ORCID iDs: Coline Monchanin, Tamara Gómez-Moracho, Alexis Buatois, Paul Marchal, Philipp D. Lösel, Fabrice Lihoreau, Andrew B. Barron, Jean-Marc Devaud, Mathieu Lihoreau
  1. Univ Toulouse, CNRS, Centre de Recherche sur la Cognition Animale, Toulouse, France
  2. School of Natural Sciences, Macquarie University, North Ryde NSW 2109, Australia
  3. Department of Parasitology, Biochemical and Molecular Parasitology Group CTS-183, University of Granada, Granada 18071, Spain
  4. Institute of Biotechnology, University of Granada, Granada 18071, Spain
  5. Department of Environmental Toxicology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dubendorf 8600, Switzerland
  6. INSERM U1314, CNRS UMR5284, Institut NeuroMyoGene, MeLiS, Lyon 69500, France
  7. Université Claude Bernard, Lyon 69500, France
  8. Department of Materials Physics, Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
  9. Institut des Sciences de l’Evolution de Montpellier, CC64, Université de Montpellier, Montpellier 34095, France
  10. Institut Universitaire de France, Paris 75005, France
Institutions: Centre National de la Recherche Scientifique (France); Centre de Recherches sur la Cognition Animale (France); Macquarie University (Australia); Universidad de Granada (Spain); Swiss Federal Institute of Aquatic Science and Technology (Switzerland); Lyon 1 Université (France); Inserm (France); Institut NeuroMyoGène (France); Mécanismes en sciences intégratives du vivant (France); Australian National University (Australia); Université de Montpellier (France); Institut des Sciences de l'Evolution de Montpellier (France); Institut Universitaire de France (France)
Journal: Proceedings of the National Academy of Sciences of the United States of America, volume 123, issue 17, article e2514030123
Dates: received 31 May 2025; accepted 25 February 2026; published online 13 April 2026; in print 28 April 2026
Type: Research article · Language: English
License: CC BY-NC-ND
Identifiers: DOI 10.1073/pnas.2514030123 · PMID 41973935 · PMCID PMC13123798 · OpenAlex W7154076523
Open access: hybrid, a free copy (OpenAlex)
Status: data only
Categories: other (organism), cognitive (subfield)
Methods: Smoothing, state filtering, decompositions, Statistics
Keywords: brain size variation, CT scan, olfactory learning, insects, antennal lobes
MeSH: Brain*, Learning*, Smell*, Animals, Bees, Odorants, Organ Size (* major topic)
Journal subjects: Biological Sciences, Ecology
Topic: Neurobiology and Insect Physiology Research (Cellular and Molecular Neuroscience, Neuroscience), according to OpenAlex
Funding: European Union (GA101002644); Agence Nationale de la Recherche (French National Research Agency) (ANR-10-INBS-04, ANR-10-LABX- 0004, ANR-10-LABX-0020); Australian Research Council (IC 180100008)
Citations: cited by 1 paper (Europe PMC); 80 references in the paper

Abstract

The abstract is not reproduced here: the paper's license (CC BY-NC-ND) does not allow it. Read it in the paper, at the publisher or on Europe PMC.

Code

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The paper's code and data availability statement is in the Data section.

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Data

Datasets cited

Code and data availability statement

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Read it in the paper: doi.org/10.1073/pnas.2514030123.

Versions

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Version 1, 29 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 12 authors, 5 keywords, 7 MeSH terms, 3 funders, 67 references.

Cite

This paper

Monchanin, C., Gómez-Moracho, T., Pasquaretta, C., Buatois, A., Bestea, L., Marchal, P., Lösel, P. D., Lebrun, R., Lihoreau, F., Barron, A. B., Devaud, J.-M., & Lihoreau, M. (2026). When a bigger brain is better: The case of bee olfactory learning. Proceedings of the National Academy of Sciences of the United States of America, 123(17), e2514030123. https://doi.org/10.1073/pnas.2514030123

BibTeX

@article{monchanin2026when,
author = {Monchanin, Coline and Gómez-Moracho, Tamara and Pasquaretta, Cristian and Buatois, Alexis and Bestea, Louise and Marchal, Paul and Lösel, Philipp D. and Lebrun, Renaud and Lihoreau, Fabrice and Barron, Andrew B. and Devaud, Jean-Marc and Lihoreau, Mathieu},
title = {{When a bigger brain is better: The case of bee olfactory learning}},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
year = {2026},
month = apr,
volume = {123},
number = {17},
pages = {e2514030123},
publisher = {National Academy of Sciences},
issn = {0027-8424},
doi = {10.1073/pnas.2514030123},
url = {https://doi.org/10.1073/pnas.2514030123},
pmid = {41973935},
pmcid = {PMC13123798}
}

RIS

TY - JOUR
AU - Monchanin, Coline
AU - Gómez-Moracho, Tamara
AU - Pasquaretta, Cristian
AU - Buatois, Alexis
AU - Bestea, Louise
AU - Marchal, Paul
AU - Lösel, Philipp D.
AU - Lebrun, Renaud
AU - Lihoreau, Fabrice
AU - Barron, Andrew B.
AU - Devaud, Jean-Marc
AU - Lihoreau, Mathieu
TI - When a bigger brain is better: The case of bee olfactory learning
T2 - Proceedings of the National Academy of Sciences of the United States of America
J2 - Proc Natl Acad Sci U S A
PY - 2026
DA - 2026/04/13
VL - 123
IS - 17
SP - e2514030123
SN - 0027-8424
PB - National Academy of Sciences
DO - 10.1073/pnas.2514030123
UR - https://doi.org/10.1073/pnas.2514030123
LA - en
ER -

CSL-JSON

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