Two wild female bonobos adopted infants from a different social group at Wamba

Abstract Adoption, the act of taking another individual’s offspring and treating it as one’s own, is rare but widely observed in various mammal species and may increase the survival of adoptees. Adoption may also benefit adoptive mothers, for example they might care for close kin to gain indirect fi...

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Autores principales:	Nahoko Tokuyama, Kazuya Toda, Marie-Laure Poiret, Bahanande Iyokango, Batuafe Bakaa, Shintaro Ishizuka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/33a59dbf81d841dd8ab3afb4d78fa701
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spelling	oai:doaj.org-article:33a59dbf81d841dd8ab3afb4d78fa7012021-12-02T16:30:05ZTwo wild female bonobos adopted infants from a different social group at Wamba10.1038/s41598-021-83667-22045-2322https://doaj.org/article/33a59dbf81d841dd8ab3afb4d78fa7012021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83667-2https://doaj.org/toc/2045-2322Abstract Adoption, the act of taking another individual’s offspring and treating it as one’s own, is rare but widely observed in various mammal species and may increase the survival of adoptees. Adoption may also benefit adoptive mothers, for example they might care for close kin to gain indirect fitness or to learn caregiving behaviours. Here, we report two cases of a wild bonobo adopting an infant from a different social group, the first report of cross-group adoption in great apes. In one case, the adoptive mother was already a mother of two dependent offspring. In the other case, the adoptive mother was an old parous female whose own offspring had already emigrated into a different social group. The adoptive mothers provided various maternal care to the adoptees, such as carrying, grooming, nursing, and sharing food. No aggression was observed by group members towards the out-group adoptees. In both cases, adoptees had no maternal kin-relationship with their adoptive mothers. Both adoptive mothers already had experience of rearing their own offspring. Instead, these cases of adoption may have been driven by other evolutionary adaptive traits of bonobos, such as their strong attraction to infants and high tolerance towards immatures and out-group individuals.Nahoko TokuyamaKazuya TodaMarie-Laure PoiretBahanande IyokangoBatuafe BakaaShintaro IshizukaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nahoko Tokuyama Kazuya Toda Marie-Laure Poiret Bahanande Iyokango Batuafe Bakaa Shintaro Ishizuka Two wild female bonobos adopted infants from a different social group at Wamba
description	Abstract Adoption, the act of taking another individual’s offspring and treating it as one’s own, is rare but widely observed in various mammal species and may increase the survival of adoptees. Adoption may also benefit adoptive mothers, for example they might care for close kin to gain indirect fitness or to learn caregiving behaviours. Here, we report two cases of a wild bonobo adopting an infant from a different social group, the first report of cross-group adoption in great apes. In one case, the adoptive mother was already a mother of two dependent offspring. In the other case, the adoptive mother was an old parous female whose own offspring had already emigrated into a different social group. The adoptive mothers provided various maternal care to the adoptees, such as carrying, grooming, nursing, and sharing food. No aggression was observed by group members towards the out-group adoptees. In both cases, adoptees had no maternal kin-relationship with their adoptive mothers. Both adoptive mothers already had experience of rearing their own offspring. Instead, these cases of adoption may have been driven by other evolutionary adaptive traits of bonobos, such as their strong attraction to infants and high tolerance towards immatures and out-group individuals.
format	article
author	Nahoko Tokuyama Kazuya Toda Marie-Laure Poiret Bahanande Iyokango Batuafe Bakaa Shintaro Ishizuka
author_facet	Nahoko Tokuyama Kazuya Toda Marie-Laure Poiret Bahanande Iyokango Batuafe Bakaa Shintaro Ishizuka
author_sort	Nahoko Tokuyama
title	Two wild female bonobos adopted infants from a different social group at Wamba
title_short	Two wild female bonobos adopted infants from a different social group at Wamba
title_full	Two wild female bonobos adopted infants from a different social group at Wamba
title_fullStr	Two wild female bonobos adopted infants from a different social group at Wamba
title_full_unstemmed	Two wild female bonobos adopted infants from a different social group at Wamba
title_sort	two wild female bonobos adopted infants from a different social group at wamba
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/33a59dbf81d841dd8ab3afb4d78fa701
work_keys_str_mv	AT nahokotokuyama twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba AT kazuyatoda twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba AT marielaurepoiret twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba AT bahanandeiyokango twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba AT batuafebakaa twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba AT shintaroishizuka twowildfemalebonobosadoptedinfantsfromadifferentsocialgroupatwamba
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Two wild female bonobos adopted infants from a different social group at Wamba

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