Fruit Flies are Pickier Than Perceived

At first sight, it might seem as though fruit flies will swarm onto any fruit on your kitchen counter. But when given a choice about where to lay their eggs, those flies will go for citrus most of the time, new work shows. The basis for that seemingly complex food preference is surprisingly simple, according to a report in the Cell Press journal iCurrent Biology /ion December 5. It boils down to a single odorant receptor found on a single class of sensory neurons. ...