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.
"Another example is much more common, but less acknowledged. It is the case of cell differentiation in embryonic development. Once a cell differentiates by responding to an environmental factor (i.e. an inductor substance), it usually passes its characteristics to descendants. (Alberts et. al. 1989, Blau, 1989). Again, after the acquisition of the differentiated character, there is hereditary transmission of it."
(Aboitiz, F. (1992) Mechanisms of adaptive evolution. Darwinism and Lamarkism restated. Medical Hypothesis 38(3): pp. 196)