From Charles Douglas Wehner:

Re: From chimps, new clues to language origins (Nov. 16): This article raises also the questions of (1) those born deaf-mute and (2) those born left-handed.

Humans who have never had the power of hearing might have a right-hand bias in their sign-language communications. Only their educators will know.

Secondly, the question of left-handedness arises. Is the whole brain reversed, or is it only the manuals skills of the left-handed people (excluding communication) that are reversed?

A thought-provoking article.