The sound of yawns makes geladas yawn

Abstract Yawning is undeniably contagious and hard to resist. Interestingly, in our species, even the mere sound of a yawn can trigger this contagious response, especially when the yawner is someone familiar. Together with humans, one other mammal species is known to produce loud and distinct vocali...

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Main Authors: Luca Pedruzzi, Martina Francesconi, Elisabetta Palagi, Alban Lemasson
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-49797-5
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author Luca Pedruzzi
Martina Francesconi
Elisabetta Palagi
Alban Lemasson
author_facet Luca Pedruzzi
Martina Francesconi
Elisabetta Palagi
Alban Lemasson
author_sort Luca Pedruzzi
collection DOAJ
description Abstract Yawning is undeniably contagious and hard to resist. Interestingly, in our species, even the mere sound of a yawn can trigger this contagious response, especially when the yawner is someone familiar. Together with humans, one other mammal species is known to produce loud and distinct vocalisations while yawning, Theropithecus gelada. Geladas are known for their complex social interactions and rich vocal communication, making them intriguing subjects for studying yawning behaviour. To explore the contagious effect of yawn sounds on geladas, we conducted playback experiments in a zoo-housed colony with animals living in two groups. We exposed them to yawn sounds (Test) or affiliative grunts (Control) produced by males from either their own group or the other one. The results were remarkable, as simply hearing yawn sounds led to yawn contagion in geladas, with multiple responses observed when the yawns came from members of their own group. This finding adds a significant contribution to the research on mimicry and behavioural contagion in primates. Moreover, it raises intriguing questions about the involvement of sensory modalities beyond visual perception in these phenomena.
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spelling doaj.art-06b051352a7d48399e77e2e06d68283d2024-01-07T12:25:27ZengNature PortfolioScientific Reports2045-23222024-01-011411710.1038/s41598-023-49797-5The sound of yawns makes geladas yawnLuca Pedruzzi0Martina Francesconi1Elisabetta Palagi2Alban Lemasson3Unit of Ethology, Department of Biology, University of PisaUnit of Ethology, Department of Biology, University of PisaUnit of Ethology, Department of Biology, University of PisaCNRS, EthoS (Ethologie Animale et Humaine)-U.M.R 6552, Université de Rennes, Université de NormandieAbstract Yawning is undeniably contagious and hard to resist. Interestingly, in our species, even the mere sound of a yawn can trigger this contagious response, especially when the yawner is someone familiar. Together with humans, one other mammal species is known to produce loud and distinct vocalisations while yawning, Theropithecus gelada. Geladas are known for their complex social interactions and rich vocal communication, making them intriguing subjects for studying yawning behaviour. To explore the contagious effect of yawn sounds on geladas, we conducted playback experiments in a zoo-housed colony with animals living in two groups. We exposed them to yawn sounds (Test) or affiliative grunts (Control) produced by males from either their own group or the other one. The results were remarkable, as simply hearing yawn sounds led to yawn contagion in geladas, with multiple responses observed when the yawns came from members of their own group. This finding adds a significant contribution to the research on mimicry and behavioural contagion in primates. Moreover, it raises intriguing questions about the involvement of sensory modalities beyond visual perception in these phenomena.https://doi.org/10.1038/s41598-023-49797-5
spellingShingle Luca Pedruzzi
Martina Francesconi
Elisabetta Palagi
Alban Lemasson
The sound of yawns makes geladas yawn
Scientific Reports
title The sound of yawns makes geladas yawn
title_full The sound of yawns makes geladas yawn
title_fullStr The sound of yawns makes geladas yawn
title_full_unstemmed The sound of yawns makes geladas yawn
title_short The sound of yawns makes geladas yawn
title_sort sound of yawns makes geladas yawn
url https://doi.org/10.1038/s41598-023-49797-5
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