You sound how you eat: speech evolved as diet changed
A surprising new study has revealed that diverse sounds produced by human speech not only evolved after Neolithic times, but also stem from biological alterations in the human bite as a result of eating softer diets.
The findings contradict the theory that the range of human sounds has not changed since Homo sapiens emerged about 300,000 years ago. Linguistic diversity was also commonly thought to evolve independently of biological changes.
Published by Cosmos Magazine.
