New research suggests chimpanzees can speak simple human words like 'mama', challenging previous assumptions about ape communication abilities.
Historical footage reviewed by scientists indicates that apes raised by humans in unethical conditions showed capability of speech, indicating possible earlier evolution of language.
Debate on ape speech capability, fueled by unethical experiments in the past, is reinvigorated by this study, emphasizing the importance of language in defining human uniqueness.
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