"It appears as if the posterior molar or wisdom-teeth were tending to become rudimentary in the more civilised races of man. These teeth are rather smaller than the other molars, as is likewise the case with the corresponding teeth in the chimpanzee and orang; and they have only two separate fangs.... In the Melanian races, on the other hand, the wisdom-teeth are usually furnished with three separate fangs, and are generally sound; they also differ from the other molars in size, less than in the Caucasian races. Schaaffhausen accounts for this difference between the races by "the posterior dental portion of the jaw being always shortened" in those that are civilised and this shortening may, I presume, be attributed to civilised men habitually feeding on soft, cooked food, and thus using their jaws less." - Charles Darwin, "THE DESCENT of MAN, and Selection in Relation to Sex." Princeton University Press, 1981, Chapter 1, Page 26 =============== 1. What further evolutionary associations may we 'safely' presume from these racial observations about the 'different' capacities exhibited by various Humans around the world to chew?