
In this unique amalgam of neuroscience, genetics, and evolutionary psychology, Ryan argues that leftists and rightists are biologically distinct versions of the human species that came into being at different moments in human evolution. The book argues that the varying...

In this unique amalgam of neuroscience, genetics, and evolutionary psychology, Ryan argues that leftists and rightists are biologically distinct versions of the human species that came into being at different moments in human evolution. The book argues that the varying...