Human evolution theory utilizing concepts of neoteny & female sexual selection
An etiology of neuropsychological disorders such as autism and dyslexia, and the origin of left handedness.
"The impossibility of input from environment to the gnome has never been proved. In view of the inventiveness of life, it would be surprising if a law of nature absolutely prohibited it. From the beginnings of life, there must have been selection not only for particular abilities but for the capacity to make useful mutations. A prime means of metazoan evolution is the improvement of the ability of cells to alter their hereditary characteristics to make possible specialization of tissues and increasingly complex multicellular organisms." (Wesson, Robert (1991) Beyond Natural Selection. MIT Press: Cambridge p. 227)
"However, the faculty of giving expression to certain genes and not to others in response to external cues is not very different from a faculty for changing heredity. Only a small fraction of DNA, perhaps as little as 1 percent in the human, is actually used; the large amount of unused DNA presumably represents as accumulation of phased-out genes, as well as a great deal of duplication; some of it may well constitute a reservoir of potential changes. There is a huge storehouse of potential changes on which the body could draw without producing any new structural genes." (Wesson, Robert (1991) Beyond Natural Selection. MIT Press: Cambridge p. 231)
"Feedback made this development circular. As neoteny progressed, it became still more necessary for the male to support his mate and the young; as the father became more important for the long-helpless young, there was more competition among females to secure and hold helpful mates, that is, to make herself attractive, which meant more neotenic. It also made the reproductive success of the male dependent not only on insemination but on seeing his children to maturity. If he became fonder of his children and his somewhat childlike mate, the family was complete."(Wesson, Robert (1991) Beyond Natural Selection. MIT Press: Cambridge p. 273)