A couple of years ago, David Brann wrote a lovely review (link here) that focused on what brain scientists might learn from understanding olfaction. Now Kara Fulton, together with our colleagues David Zimmerman, Aravi Samuel and Katrin Vogt – all experts on the invertebrate side – has put together a similarly beautiful review (link here) on the current state of our understanding of smell. Kara goes deep both on mechanisms and on the relationship between the mammalian and insect senses of smell – it is a really lovely synthesis both of what we know and what we don’t, and a nice introduction to the field for newcomers.