PubMed · 7434008
Reference: the linguistic essential.
Abstract
Three chimpanzees learned to label three edibles as "foods" and three inedibles as "tools". Two chimpanzees could then similarly categorize numerous objects during blind trial 1 tests when shown only objects' names. The language-like skills of the chimpanzee who failed (Lana) illustrates that apes can use symbols in ways that emulate human usage without comprehending their representational function.
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E S Savage-Rumbaugh, D M Rumbaugh, S T Smith, J Lawson. 1980-11-21. Reference: the linguistic essential.. https://doi.org/10.1126/science.7434008
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