SO ENDS this first of two weekends devoted to an evo-devo analysis of the human nose. As a case study, it is an exemplary example of the power of combining evolution and development as tools to untangle a complex dual function organ like the nose. While you may not have spent sleepless nights worrying about these questions, this very elegant article guides you effortlessly between arcane medical school anatomy, involuted embryology and taxa surveys to answer this question. Walk in somebody else’s shoes a mile or two.