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Cited by 913

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Big brains, enhanced cognition, and response of birds to novel environments

Open access
Sol, Daniel, Duncan, Richard P., Blackburn, Tim M., Cassey, Phillip, Lefebvre, Louis·2005·Proceedings of the National Academy of Sciences

Abstract

The widely held hypothesis that enlarged brains have evolved as an adaptation to cope with novel or altered environmental conditions lacks firm empirical support. Here, we test this hypothesis for a major animal group (birds) by examining whether large-brained species show higher survival than small-brained species when introduced to nonnative locations. Using a global database documenting the outcome of >600 introduction events, we confirm that avian species with larger brains, relative to their body mass, tend to be more successful at establishing themselves in novel environments. Moreover, we provide evidence that larger brains help birds respond to novel conditions by enhancing their innovation propensity rather than indirectly through noncognitive mechanisms. These findings provide strong evidence for the hypothesis that enlarged brains function, and hence may have evolved, to deal with changes in the environment.

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Registry

Crossref · 10.1073/pnas.0408145102

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Metadata

Authors
Sol, D., Duncan, R. P., Blackburn, T. M., Cassey, P., & Lefebvre, L.
Venue
Proceedings of the National Academy of Sciences
Published
2005-03-22
Volume
102
Issue
15
Pages
5460-5465
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1983774268
Cited by
913
References
9
FWCI
30.33
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Big brains, enhanced cognition, and response of birds to novel environments. https://app.cochat.ai/papers/10.1073/pnas.0408145102
The paper
Sol, D., Duncan, R. P., Blackburn, T. M., Cassey, P., & Lefebvre, L. (2005). Big brains, enhanced cognition, and response of birds to novel environments. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0408145102

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.