Speech: A Natural History

What is speech? Where did it come from?
Speech is the exchange of information for mutual social orientation. Its fundamental features are simplicity of structure and universal referential usage.

Gaona traces the evolution of signal calls of anthropoid apes and early hominins to the vocalized utterances of speech. The signal call’s frequency components were deconstructed and rearranged (isomeric reordering), leading to the breakthrough discovery of the syllable as a uniquely creative unit of c...