The skulls of our ancestors: Implications regarding speech, language, and conceptual thought evolution

  • Edmund S. Crelin
    Address correspondence and reprint requests to Dr. E. S. Crelin, Section of Anatomy, Department of Surgery, Yale University School of Medicine, 333 Cedar Street, P.O. Box 3333, New Haven, CT 06510, U.S.A.
    Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, U.S.A.
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      Anatomical studies compared the vocal tracts and skulls of immature and mature humans with those of other species and with the fossil skulls of ancestral human forms. The results offered an explanation of human vocal tract evolution and its possible relationship to the evolution of speech, language, and conceptual thought.

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        • Crelin ES
        The human vocal tract: anatomy, function, development and evolution.
        in: Vantage Press, New York1987: 1-265