Biology For Liberals: Human Reciprocity and Its Evolution 0 researchok BooksJuly 2012Tuesday, July 10, 2012 at 12:54 am PDT • Views: 747 tnr.com More Evolutionary Biology Human Behavior Human Nature Human Reciprocity Liberals Natural Selection Richard Dawkins Self-Interested Individuals Selfish Gene-Based Explanations Unregulated Decisions