“Nice Guys Finish First”—Youtube Video of selected reading (by Dawkins) from The Selfish Gene

Check it out here.

Brief summary: Dawkins demonstrates a classic “Prisoner Dilemma AI tournament”. No big surprise to us today, but at the time the revelation that Tit for Tat is one of—if not *the* -- most effective strateg(y|ies) was a surprising result. He goes on to demonstrate animals employing the Tit for Tat strategy. Assumptions of generosity, with vengefulness, appear to be strongly selected for.