Paedomorphic facial expressions give dogs a selective advantage.

How wolves were first domesticated is unknown. One hypothesis suggests that wolves underwent a process of self-domestication by tolerating human presence and taking advantage of scavenging possibilities. The puppy-like physical and behavioural traits seen in dogs are thought to have evolved later, a...

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Autores principales:	Bridget M Waller, Kate Peirce, Cátia C Caeiro, Linda Scheider, Anne M Burrows, Sandra McCune, Juliane Kaminski
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/75f0132122874a70902fdfba854fafb3
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spelling	oai:doaj.org-article:75f0132122874a70902fdfba854fafb32021-11-18T08:40:25ZPaedomorphic facial expressions give dogs a selective advantage.1932-620310.1371/journal.pone.0082686https://doaj.org/article/75f0132122874a70902fdfba854fafb32013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24386109/?tool=EBIhttps://doaj.org/toc/1932-6203How wolves were first domesticated is unknown. One hypothesis suggests that wolves underwent a process of self-domestication by tolerating human presence and taking advantage of scavenging possibilities. The puppy-like physical and behavioural traits seen in dogs are thought to have evolved later, as a byproduct of selection against aggression. Using speed of selection from rehoming shelters as a proxy for artificial selection, we tested whether paedomorphic features give dogs a selective advantage in their current environment. Dogs who exhibited facial expressions that enhance their neonatal appearance were preferentially selected by humans. Thus, early domestication of wolves may have occurred not only as wolf populations became tamer, but also as they exploited human preferences for paedomorphic characteristics. These findings, therefore, add to our understanding of early dog domestication as a complex co-evolutionary process.Bridget M WallerKate PeirceCátia C CaeiroLinda ScheiderAnne M BurrowsSandra McCuneJuliane KaminskiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e82686 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bridget M Waller Kate Peirce Cátia C Caeiro Linda Scheider Anne M Burrows Sandra McCune Juliane Kaminski Paedomorphic facial expressions give dogs a selective advantage.
description	How wolves were first domesticated is unknown. One hypothesis suggests that wolves underwent a process of self-domestication by tolerating human presence and taking advantage of scavenging possibilities. The puppy-like physical and behavioural traits seen in dogs are thought to have evolved later, as a byproduct of selection against aggression. Using speed of selection from rehoming shelters as a proxy for artificial selection, we tested whether paedomorphic features give dogs a selective advantage in their current environment. Dogs who exhibited facial expressions that enhance their neonatal appearance were preferentially selected by humans. Thus, early domestication of wolves may have occurred not only as wolf populations became tamer, but also as they exploited human preferences for paedomorphic characteristics. These findings, therefore, add to our understanding of early dog domestication as a complex co-evolutionary process.
format	article
author	Bridget M Waller Kate Peirce Cátia C Caeiro Linda Scheider Anne M Burrows Sandra McCune Juliane Kaminski
author_facet	Bridget M Waller Kate Peirce Cátia C Caeiro Linda Scheider Anne M Burrows Sandra McCune Juliane Kaminski
author_sort	Bridget M Waller
title	Paedomorphic facial expressions give dogs a selective advantage.
title_short	Paedomorphic facial expressions give dogs a selective advantage.
title_full	Paedomorphic facial expressions give dogs a selective advantage.
title_fullStr	Paedomorphic facial expressions give dogs a selective advantage.
title_full_unstemmed	Paedomorphic facial expressions give dogs a selective advantage.
title_sort	paedomorphic facial expressions give dogs a selective advantage.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/75f0132122874a70902fdfba854fafb3
work_keys_str_mv	AT bridgetmwaller paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT katepeirce paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT catiaccaeiro paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT lindascheider paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT annemburrows paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT sandramccune paedomorphicfacialexpressionsgivedogsaselectiveadvantage AT julianekaminski paedomorphicfacialexpressionsgivedogsaselectiveadvantage
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Paedomorphic facial expressions give dogs a selective advantage.

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