Researchers have demonstrated that a pygmy chimpanzee named kanzi can understand in spoken english.

The answer is can comprehend appropriate word when a symbol is touched. This is also called a visual symbol system that consist a geometric symbols which can be touched and brightened.  They also can be considered a brighter species that can acquire language. Kanzu is a pygmy chimpanzee who was aged 30 to 47 months during the first report.

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