The gestural theory of and the vocal theory of language origins are not incompatible with one another

Abstract

This book as a whole outlines an approach to the origins of language as the evolution of expressive and communicative behavior of primates, especially until the emergence of single word utterances in Homo sapiens sapiens as it is observed currently. It argues that expressive and communicative actions evolved as a complex and cooperative system with other elements of the human's physiology, behavior and social environment.