γλωσσική αλλαγή

A dietary change may have given rise to the “f” and “v” sounds Ιδέα του 1985, νέα έρευνα του 2019. "This study, published in Science on 15 March 2019, contradicts the theory that the phonetic diversity of human languages has remained fixed since the emergence of our species 300,000 years ago."