Many fish species employ hormonal products as sex pheromones, and these cues are often mixtures that are released with a temporal pattern. This behavior is strikingly similar to that of insects, as moths use precise blends of odorants as sex pheromones and are skillful at tracking them in spite of changes in odor intensity associated with aerial dispersal. New studies in both groups of animals suggest many parallels in the functional anatomy of olfactory pathways and the organization of information-coding circuits.
Bibliographical noteFunding Information:
I’\VS orcnsics nsu pport~:db y the National Science I;oundation (NSI;/IBN-9723798) and the Minnesota ,Agricultural Experiment Station; ‘I‘A Chris-tcrlscn is supported by National Institutes of Health (IX-02751) and the I!nitcd States Dcpartmcnt of Agriculture (95-37302-1833); and NE Stacey is supl)ortcd by an operxing grant form the Natural Sciences and Engineering licxarch Council of Canada.