Animal attraction
Pheromones clearly act as sexual attractants in the animal world. Older male elephants, for example, exude sexual prowess with a mix of chemicals the younger bulls can't muster.
Milos Novotny of the Institute of Pheromone Research at Indiana University has shown that special molecules produced by male mice can simultaneously attract females and repel, and even anger, rival males. Other studies have found similar responses throughout the animal kingdom.
動物間的吸引
信息素在動物世界里是種致命吸引物。比如,年長的公象就會分泌一種混合了多種化學物質的汗液,這是年輕的公象可望不可即的。
印第安那大學信息素研究所的Milos Novotny發現,雄性老鼠分泌的一種特殊的物質可以馬上吸引雌性,同事擊退、甚至激怒其他的雄性。其他的研究也發現,在整個動物界中都存在這類似的現象。