Anatomically humans were ready to speak more the 150

Anatomically humans were ready to speak more the 150 - 1...

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1. Anatomically humans were ready to speak more the 150,000 years ago.  This was due  to raw brain capacity and throat anatomy.  The evidence does not show up till about  40,000 years ago in the form of tools and other artifacts.  2. Humans would have been capable of speech 200,000 years ago according to Jeffrey  Laitman of Mount Sinai Medical Center.  He states that the larynx descended and that  the tongue was rooted to the throat.  There are no other benefits for these changes other  than speech.  The other physical evidence is the size of brains growing about a half a  million years ago to 1500 cubic centimeters.  Also, with the growing brains was the brain  organization with implicated speech due to changes in the frontal and temporal lobes.  The first behavior evidence is found in the fact that humans started using specialized 
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