Who out there knows that butterflies are scented? Their aroma can be that of flowers like honeysuckle or jasmine, herbs and spices like lemon verbena or cinnamon, or confections like vanilla or chocolate, depending on the species. It can also be unpleasant, like vinegar, or urine. According to Avery Gilbert, author of What the Nose Knows, scented butterflies are neither exotic nor rare. While field guides do not say so, Gilbert notes that butterflies can easily be caught, sniffed, and released unharmed. What a captivating pursuit!

With my recent article on body odor, and the heat of summer causing lots of seasonally assertive odors, questions about the power of scent have stuck in my mind. So I turned to an expert: Gilbert’s new book examines why the sense of smell is so underappreciated, and why it should be… More…