TY - GEN ID - cogprints866 UR - http://cogprints.org/866/ A1 - Steklis, Horst Dieter A1 - Harnad, Stevan Y1 - 1976/// N2 - A theory of the evolution of lanaguage, beginning with bipedalism and lateralization, through instrumental and iconic gesture, to arcbitrary symbols, propositions and speech. The "translatability thesis" is also introduced, to the effect that all languages are intertranslatable (hence all can express any and every proposition). PB - Annals of the New York Academy of Sciences 280 KW - language KW - evolution KW - lateralization KW - gesture KW - propositions KW - symbols KW - translatability KW - speech TI - From hand to mouth: Some critical stages in the evolution of language SP - 445 AV - public EP - 455 ER -