What is wrong with finding examples of domestication and asking questions about these traits?
The hereditary basis of this phenomenon constitutes one of the oldest problems in genetics.
...and this problem is still not solved, despite some attempts...
Source: http://www.genetics.org/content/197/3/795

I suspect that you are trying to NOT talk about Lloyd Pye's ideas because he has the physical evidence to back up what he is saying about intervention:


Source: http://www.lloydpye.com/starchildskull.htm