Most mammals use some form of call system to communicate with others of their species. Dogs and chimpanzees share an additional linguistic characteristic because they can communicate simple combinations of ideas about things they are not currently seeing.

Question

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Dogs and chimpanzees do not have the ability to communicate about things not currently present, which is a characteristic of human language known as displacement. They can communicate basic needs or emotions but not abstract or displaced ideas.

Most Mammals Use Some Form of Call System to Communicate