Solving Modern Problems With a Stone-Age Brain: Human Evolution and the Seven Fundamental MotivesAudiobookSolving Modern Problems With a Stone-Age Brain: Human Evolution and the Seven Fundamental MotivesbyDouglas T. Kenrick, PhDRating: 4 out of 5 stars4/5Save Solving Modern Problems With a Stone-Age Brain: Human Evolution and the Seven Fundamental Motives for later