Research into great ape language has involved teaching chimpanz... - dofaq.co
great ape language

Research into great ape language has involved teaching chimpanz...

wikipedia - 07 Sep 2015
Research into great ape language has involved teaching chimpanzees, bonobos, gorillas, and orangutans to communicate with human beings and with each other using sign language, physical tokens, and lexigrams; see Yerkish. Some primatologists argue that these primates' use of the communication tools indicates their ability to use "language", although this is not consistent with some definitions of that term.

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