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Maternal cannibalism in two populations of wild chimpanzees

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Fedurek_2019_Primates_CC.pdf (797.5Kb)
Date
05/10/2019
Author
Fedurek, Pawel
Tkaczynski, Patrick
Asiimwe, Caroline
Hobaiter, Catherine
Samuni, Liran
Lowe, Adriana E.
Dijrian, Appolinaire Gnahe
Zuberbühler, Klaus
Wittig, Roman M.
Crockford, Catherine
Keywords
Cannibalism
Chimpanzee
Maternal cannibalism
Parental investment
BF Psychology
QL Zoology
Animal Science and Zoology
DAS
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Abstract
Maternal cannibalism has been reported in several animal taxa, prompting speculations that the behavior may be part of an evolved strategy. In chimpanzees, however, maternal cannibalism has been conspicuously absent, despite high levels of infant mortality and reports of non-maternal cannibalism. The typical response of chimpanzee mothers is to abandon their deceased infant, sometimes after prolonged periods of carrying and grooming the corpse. Here, we report two anomalous observations of maternal cannibalism in communities of wild chimpanzees in Uganda and Ivory Coast and discuss the evolutionary implications. Both infants likely died under different circumstances; one apparently as a result of premature birth, the other possibly as a result of infanticide. In both cases, the mothers consumed parts of the corpse and participated in meat sharing with other group members. Neither female presented any apparent signs of ill health before or after the events. We concluded that, in both cases, cannibalizing the infant was unlikely due to health-related issues by the mothers. We discuss these observations against a background of chimpanzee mothers consistently refraining from maternal cannibalism, despite ample opportunities and nutritional advantages. We conclude that maternal cannibalism is extremely rare in this primate, likely due to early and strong mother–offspring bond formation, which may have been profoundly disrupted in the current cases.
Citation
Fedurek , P , Tkaczynski , P , Asiimwe , C , Hobaiter , C , Samuni , L , Lowe , A E , Dijrian , A G , Zuberbühler , K , Wittig , R M & Crockford , C 2019 , ' Maternal cannibalism in two populations of wild chimpanzees ' , Primates , vol. First Online . https://doi.org/10.1007/s10329-019-00765-6
Publication
Primates
Status
Peer reviewed
DOI
https://doi.org/10.1007/s10329-019-00765-6
ISSN
0032-8332
Type
Journal article
Rights
Copyright © The Author(s) 2019. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/18941

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