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Chimpanzee are incapable of Language
c) A simple way to disprove this Innateness Hypothesis, as linguists call it, is to demonstrate that other species have the capacity to speak but for some reason simply have not developed speech.
d) It does not follow from their lack of speech, however, that chimpanzees are incapable of language, that is a human-like grammar.
a) Chimpanzees cannot speak because, unlike humans, their vocal cords are located higher in their throats and cannot be controlled as well as human vocal cords.
b) Perhaps they can acquire grammar and speak if they could only use grammar some way other than with a voice.
e) A logical candidate for such a species is the chimpanzee, which shares 98.4% of the human