Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors.
Dogs (Canis lupus familiaris) are the domestically bred descendant of wolves (Canis lupus). However, selective breeding has profoundly altered facial morphologies of dogs compared to their wolf ancestors. We demonstrate that these morphological differences limit the abilities of dogs to successfully...
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Online Access: | https://doi.org/10.1038/s41598-024-61110-6 https://pubmed.ncbi.nlm.nih.gov/38714729 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076640/ |
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ftpubmed:38714729 2024-06-09T07:45:17+00:00 Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. Hobkirk, Elana R Twiss, Sean D 2024-05-07 https://doi.org/10.1038/s41598-024-61110-6 https://pubmed.ncbi.nlm.nih.gov/38714729 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076640/ eng eng Nature Publishing Group https://doi.org/10.1038/s41598-024-61110-6 https://pubmed.ncbi.nlm.nih.gov/38714729 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076640/ © 2024. The Author(s). Sci Rep ISSN:2045-2322 Volume:14 Issue:1 Animal welfare Domestic dogs Domestication Emotions Facial expressions Wolves Journal Article Research Support, Non-U.S. Gov't Comparative Study 2024 ftpubmed https://doi.org/10.1038/s41598-024-61110-6 2024-05-10T16:03:00Z Dogs (Canis lupus familiaris) are the domestically bred descendant of wolves (Canis lupus). However, selective breeding has profoundly altered facial morphologies of dogs compared to their wolf ancestors. We demonstrate that these morphological differences limit the abilities of dogs to successfully produce the same affective facial expressions as wolves. We decoded facial movements of captive wolves during social interactions involving nine separate affective states. We used linear discriminant analyses to predict affective states based on combinations of facial movements. The resulting confusion matrix demonstrates that specific combinations of facial movements predict nine distinct affective states in wolves; the first assessment of this many affective facial expressions in wolves. However, comparative analyses with kennelled rescue dogs revealed reduced ability to predict affective states. Critically, there was a very low predictive power for specific affective states, with confusion occurring between negative and positive states, such as Friendly and Fear. We show that the varying facial morphologies of dogs (specifically non-wolf-like morphologies) limit their ability to produce the same range of affective facial expressions as wolves. Confusion among positive and negative states could be detrimental to human-dog interactions, although our analyses also suggest dogs likely use vocalisations to compensate for limitations in facial communication. Article in Journal/Newspaper Canis lupus PubMed Central (PMC) Scientific Reports 14 1 |
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English |
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Animal welfare Domestic dogs Domestication Emotions Facial expressions Wolves |
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Animal welfare Domestic dogs Domestication Emotions Facial expressions Wolves Hobkirk, Elana R Twiss, Sean D Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
topic_facet |
Animal welfare Domestic dogs Domestication Emotions Facial expressions Wolves |
description |
Dogs (Canis lupus familiaris) are the domestically bred descendant of wolves (Canis lupus). However, selective breeding has profoundly altered facial morphologies of dogs compared to their wolf ancestors. We demonstrate that these morphological differences limit the abilities of dogs to successfully produce the same affective facial expressions as wolves. We decoded facial movements of captive wolves during social interactions involving nine separate affective states. We used linear discriminant analyses to predict affective states based on combinations of facial movements. The resulting confusion matrix demonstrates that specific combinations of facial movements predict nine distinct affective states in wolves; the first assessment of this many affective facial expressions in wolves. However, comparative analyses with kennelled rescue dogs revealed reduced ability to predict affective states. Critically, there was a very low predictive power for specific affective states, with confusion occurring between negative and positive states, such as Friendly and Fear. We show that the varying facial morphologies of dogs (specifically non-wolf-like morphologies) limit their ability to produce the same range of affective facial expressions as wolves. Confusion among positive and negative states could be detrimental to human-dog interactions, although our analyses also suggest dogs likely use vocalisations to compensate for limitations in facial communication. |
format |
Article in Journal/Newspaper |
author |
Hobkirk, Elana R Twiss, Sean D |
author_facet |
Hobkirk, Elana R Twiss, Sean D |
author_sort |
Hobkirk, Elana R |
title |
Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
title_short |
Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
title_full |
Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
title_fullStr |
Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
title_full_unstemmed |
Domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
title_sort |
domestication constrains the ability of dogs to convey emotions via facial expressions in comparison to their wolf ancestors. |
publisher |
Nature Publishing Group |
publishDate |
2024 |
url |
https://doi.org/10.1038/s41598-024-61110-6 https://pubmed.ncbi.nlm.nih.gov/38714729 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076640/ |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
Sci Rep ISSN:2045-2322 Volume:14 Issue:1 |
op_relation |
https://doi.org/10.1038/s41598-024-61110-6 https://pubmed.ncbi.nlm.nih.gov/38714729 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11076640/ |
op_rights |
© 2024. The Author(s). |
op_doi |
https://doi.org/10.1038/s41598-024-61110-6 |
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Scientific Reports |
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14 |
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1 |
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1801374551625433088 |