*Trigger warning for extreme racism*
A peer-reviewed journal by the name of “Personality and Individual Differences”, published a paper in March 2012 titled, “Do pigmentation and the melanocortin system modulate aggression and sexuality in humans as they do in other animals?” (full paper available at link), by two psychologists. The psychology bit is important, because the paper is essentially looking at biology, and there doesn’t appear to be much in the way of qualification in biology that the two authors of the paper have.
I strongly caution you regarding the racism in this paper. It is abhorrent and awful. The commentary below delves a bit into who the authors are, my WTF in relation to the contents of the paper, and how fucked up the whole thing is. The paper is a hard read, and this whole post may be triggering.