Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.

Chimpanzee culture has generated intense recent interest, fueled by the technical complexity of chimpanzee tool-using traditions; yet it is seriously doubted whether chimpanzees are able to learn motor procedures by imitation under natural conditions. Here we take advantage of an unusual chimpanzee...

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Autores principales:	Catherine Hobaiter, Richard W Byrne
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/84fc425233b047a7bc1a91dc66f96a9e
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spelling	oai:doaj.org-article:84fc425233b047a7bc1a91dc66f96a9e2021-11-18T06:36:24ZAble-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.1932-620310.1371/journal.pone.0011959https://doaj.org/article/84fc425233b047a7bc1a91dc66f96a9e2010-08-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20700527/?tool=EBIhttps://doaj.org/toc/1932-6203Chimpanzee culture has generated intense recent interest, fueled by the technical complexity of chimpanzee tool-using traditions; yet it is seriously doubted whether chimpanzees are able to learn motor procedures by imitation under natural conditions. Here we take advantage of an unusual chimpanzee population as a 'natural experiment' to identify evidence for imitative learning of this kind in wild chimpanzees. The Sonso chimpanzee community has suffered from high levels of snare injury and now has several manually disabled members. Adult male Tinka, with near-total paralysis of both hands, compensates inability to scratch his back manually by employing a distinctive technique of holding a growing liana taut while making side-to-side body movements against it. We found that seven able-bodied young chimpanzees also used this 'liana-scratch' technique, although they had no need to. The distribution of the liana-scratch technique was statistically associated with individuals' range overlap with Tinka and the extent of time they spent in parties with him, confirming that the technique is acquired by social learning. The motivation for able-bodied chimpanzees copying his variant is unknown, but the fact that they do is evidence that the imitative learning of motor procedures from others is a natural trait of wild chimpanzees.Catherine HobaiterRichard W ByrnePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 8, p e11959 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Catherine Hobaiter Richard W Byrne Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
description	Chimpanzee culture has generated intense recent interest, fueled by the technical complexity of chimpanzee tool-using traditions; yet it is seriously doubted whether chimpanzees are able to learn motor procedures by imitation under natural conditions. Here we take advantage of an unusual chimpanzee population as a 'natural experiment' to identify evidence for imitative learning of this kind in wild chimpanzees. The Sonso chimpanzee community has suffered from high levels of snare injury and now has several manually disabled members. Adult male Tinka, with near-total paralysis of both hands, compensates inability to scratch his back manually by employing a distinctive technique of holding a growing liana taut while making side-to-side body movements against it. We found that seven able-bodied young chimpanzees also used this 'liana-scratch' technique, although they had no need to. The distribution of the liana-scratch technique was statistically associated with individuals' range overlap with Tinka and the extent of time they spent in parties with him, confirming that the technique is acquired by social learning. The motivation for able-bodied chimpanzees copying his variant is unknown, but the fact that they do is evidence that the imitative learning of motor procedures from others is a natural trait of wild chimpanzees.
format	article
author	Catherine Hobaiter Richard W Byrne
author_facet	Catherine Hobaiter Richard W Byrne
author_sort	Catherine Hobaiter
title	Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
title_short	Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
title_full	Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
title_fullStr	Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
title_full_unstemmed	Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
title_sort	able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/84fc425233b047a7bc1a91dc66f96a9e
work_keys_str_mv	AT catherinehobaiter ablebodiedwildchimpanzeesimitateamotorprocedureusedbyadisabledindividualtoovercomehandicap AT richardwbyrne ablebodiedwildchimpanzeesimitateamotorprocedureusedbyadisabledindividualtoovercomehandicap
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Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap.

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