New Caledonian Crows Use Mental Representations to Solve Metatool Problems.
New Caledonian crow
corvids
foresight
mental representation
metatool use
planning
Journal
Current biology : CB
ISSN: 1879-0445
Titre abrégé: Curr Biol
Pays: England
ID NLM: 9107782
Informations de publication
Date de publication:
18 02 2019
18 02 2019
Historique:
received:
06
08
2018
revised:
22
11
2018
accepted:
03
01
2019
pubmed:
13
2
2019
medline:
4
3
2020
entrez:
13
2
2019
Statut:
ppublish
Résumé
One of the mysteries of animal problem-solving is the extent to which animals mentally represent problems in their minds. Humans can imagine both the solution to a problem and the stages along the way [1-3], such as when we plan one or two moves ahead in chess. The extent to which other animals can do the same is far less clear [4-25]. Here, we presented New Caledonian crows with a series of metatool problems where each stage was out of sight of the others and the crows had to avoid either a distractor apparatus containing a non-functional tool or a non-functional apparatus containing a functional tool. Crows were able to mentally represent the sub-goals and goals of metatool problems: crows kept in mind the location and identities of out-of-sight tools and apparatuses while planning and performing a sequence of tool behaviors. This provides the first conclusive evidence that birds can plan several moves ahead while using tools.
Identifiants
pubmed: 30744978
pii: S0960-9822(19)30010-7
doi: 10.1016/j.cub.2019.01.008
pmc: PMC6384166
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
686-692.e3Commentaires et corrections
Type : CommentIn
Type : CommentIn
Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.
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