March 29, 2010 Stanford professor Robert Sapolsky gave the opening lecture of the course entitled Human Behavioral Biology. It is a fascinating set of lectures including topics on genetics and strategies of deception that are explained by game theory.
If diversity is our strength then the races must be different because if we were the same we would not be diverse. Thus if you believe in evolution you must believe most of what is contained in the following video.
Sir your munkey! Research Links Daniel Kahneman
The whole class series A quite interesting take down on life's various reproductive and evolutionary strategies.