A longitudinal assessment of vocabulary retention in symbol-competent chimpanzees (Pan troglodytes).

A number of studies from the 1960s to 1990s assessed the symbolic competence of great apes and other animals. These studies provided varying forms of evidence that some species were capable of symbolically representing their worlds, both through productive symbol use and comprehension of symbolic st...

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Bibliographic Details
Main Authors: Michael J Beran, Lisa A Heimbauer
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0118408