Why did vocal language independently evolve across almost every race as a primary means of communication instead of say hand signals or face-expressions ? talk ) 23 : 25, 7 June 2014 ( UTC)
12.
Even vocal language has some paralinguistic as well as linguistic properties that can be " seen " ( lip reading, McGurk effect ), and even " felt ", e . g . by the Tadoma method.
13.
In Auel's context, our human ancestors, The Cro-Magnon " Others, " generally look upon the " Flatheads " as animals, hardly better than bears ( the lack of vocal language is a primary factor in this verdict ).
14.
Using statistical methods to estimate the time required to achieve the current spread and diversity in modern languages today, Johanna Nichols a linguist at the University of California, Berkeley argued in 1998 that vocal languages must have begun diversifying in our species at least 100, 000 years ago.
