Choosing a mate: It’s the brain, not the nose, that knows

How does a male moth find the right sort of female for mating, when there are two similar types luring him with their pheromones? In many species, differences in the antenna used by the male to smell these perfumes are responsible for his choice. But in the European Corn Borer, changes in the male’s brain seem to dictate his choice between two types of available females, as shown by researchers from the University of Amsterdam, the Swedish University of Agricultural Sciences, and the Max Planck Institute for Chemical Ecology. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)