For Sissel Tolaas, even the liveliest city may be a “blandscape.” Here, the chemist shares thoughts on why, for her, smell is the most important sense.
Pheromones are a hot topic. But as zoologist Tristram Wyatt argues, we’re not even sure that humans have them. Meanwhile, scientists have been studying these chemical signals for years in the animal kingdom — and made some extremely weird observations.