Population-level laterality in foraging finless porpoises

Laterality has been reported in many vertebrates, and asymmetrical cerebral hemisphere function has been hypothesized to cause a left-bias in social behavior and a right-bias in feeding behavior. In this paper, we provide the first report of behavioral laterality in free-ranging finless porpoises, w...

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Autores principales: Amano, Masao, Kawano, Yudai, Kubo, Taketo, Kuwahara, Tsuyoshi, Kobayashi, Hayao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8551196/
https://www.ncbi.nlm.nih.gov/pubmed/34707173
http://dx.doi.org/10.1038/s41598-021-00635-6
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author Amano, Masao
Kawano, Yudai
Kubo, Taketo
Kuwahara, Tsuyoshi
Kobayashi, Hayao
author_facet Amano, Masao
Kawano, Yudai
Kubo, Taketo
Kuwahara, Tsuyoshi
Kobayashi, Hayao
author_sort Amano, Masao
collection PubMed
description Laterality has been reported in many vertebrates, and asymmetrical cerebral hemisphere function has been hypothesized to cause a left-bias in social behavior and a right-bias in feeding behavior. In this paper, we provide the first report of behavioral laterality in free-ranging finless porpoises, which seems to support the aforementioned hypothesis. We observed the turning behavior of finless porpoises in Omura Bay, Japan, using land-based and unmanned aerial system observations. We found a strong tendency in finless porpoises to turn counterclockwise with their right side down when pursuing and catching fish at the surface of the water. Our results suggest that this population of finless porpoises shows consistent right-biased laterality. Right-biased laterality has been observed in various foraging cetaceans and is usually explained by the dominance of the right eye-left cerebral hemisphere in prey recognition; however, right-biased laterality in foraging cetaceans may have multiple causes.
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spelling pubmed-85511962021-10-28 Population-level laterality in foraging finless porpoises Amano, Masao Kawano, Yudai Kubo, Taketo Kuwahara, Tsuyoshi Kobayashi, Hayao Sci Rep Article Laterality has been reported in many vertebrates, and asymmetrical cerebral hemisphere function has been hypothesized to cause a left-bias in social behavior and a right-bias in feeding behavior. In this paper, we provide the first report of behavioral laterality in free-ranging finless porpoises, which seems to support the aforementioned hypothesis. We observed the turning behavior of finless porpoises in Omura Bay, Japan, using land-based and unmanned aerial system observations. We found a strong tendency in finless porpoises to turn counterclockwise with their right side down when pursuing and catching fish at the surface of the water. Our results suggest that this population of finless porpoises shows consistent right-biased laterality. Right-biased laterality has been observed in various foraging cetaceans and is usually explained by the dominance of the right eye-left cerebral hemisphere in prey recognition; however, right-biased laterality in foraging cetaceans may have multiple causes. Nature Publishing Group UK 2021-10-27 /pmc/articles/PMC8551196/ /pubmed/34707173 http://dx.doi.org/10.1038/s41598-021-00635-6 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Amano, Masao
Kawano, Yudai
Kubo, Taketo
Kuwahara, Tsuyoshi
Kobayashi, Hayao
Population-level laterality in foraging finless porpoises
title Population-level laterality in foraging finless porpoises
title_full Population-level laterality in foraging finless porpoises
title_fullStr Population-level laterality in foraging finless porpoises
title_full_unstemmed Population-level laterality in foraging finless porpoises
title_short Population-level laterality in foraging finless porpoises
title_sort population-level laterality in foraging finless porpoises
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8551196/
https://www.ncbi.nlm.nih.gov/pubmed/34707173
http://dx.doi.org/10.1038/s41598-021-00635-6
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