The champion smeller of the insect world is the male silkmoth. He can scent his ladylove as far away as 6 miles or more, and he can detect as few as one or two of her pheromone scent particles at that distance. His ardor shows itself in his walk, which becomes a stagger, as if he were drunk on love. His powerful sense of smell has inspired scientists to begin developing an artificial brain based on it that may someday become the mover of scent-detecting robots to use against drug smuggling and chemical weapons.