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published, Alina Bradford (29 May 2015). "Facts About Apes". livescience.com (بالإنجليزية). Archived from the original on 2023-06-02. Retrieved 2023-07-31.
published, Alina Bradford (29 May 2015). "Facts About Apes". livescience.com (بالإنجليزية). Archived from the original on 2023-06-02. Retrieved 2023-07-31.