The Genetics of Political Behavior: How Evolutionary Psychology Explains Ideology by Michael Ryan

Michael Ryan's book, The Genetics of Political Behavior: How Evolutionary Psychology Explains Ideology, argues that left-wing and right-wing political ideologies stem from distinct, biologically-rooted traits shaped by human evolutionary history, linking rightist traits (fear, order, status quo) to early survival needs and leftist traits (empathy, cooperation, openness) to later social group development, with differences seen in brain structures like the amygdala and insula. The book synthesizes neuroscience, genetics, and evolutionary psychology, suggesting these aren't just learned behaviors but partly genetic predispositions that influence how individuals perceive threats and interact socially, forming the basis for ideological divides