“下海”这两个字是当前时髦的新潮词儿,我也不防“下海”萧洒一番.从酒海中拾得几则趣闻,待酒余茶后博君一笑.一、气味与动物的嗅觉人该属于视觉型,因为人的天敌少,所以嗅觉已退化,与其它动物相比嗅力逊色多了.许多动物嗅觉发达,借以防敌、觅食、寻偶和辨认亲属关系;还能放出各种气味御敌,借机逃脱,这在生存竞争的动物世界里是不可少的.因而有人说;“气味是动物的语言,是联络信号”.此言毫不夸张.为了种群及自我保护,当水中鱼群中有皮肤受伤者,立即排出气味物质作为警告信号,警告其它同类应立即四散逃走.其放出警告性物质称作“惊愕物质”.是鱼群间保护的重要传播信号. “The sea” these two words is the trendy trendy word of children, I do not prevent the “sea” chic about it.From the sea of ​​wine picked up a few anecdotes, to be wine and tea Bo Jun smile .A smell and animal smell People belong to the visual type, because human natural enemies less, so the sense of smell has deteriorated, compared with other animals less than the smell of many animals have developed sense of smell, in order to defeat, foraging, finding couples and identify kinship; It is no exaggeration to say that “smell is the language of an animal, a signal of contact,” as it is said that in order for the population and self-protection , When there are skin wounds in the fish in the water, the odor substance is immediately emitted as a warning signal to warn other people of the same kind to flee immediately, and its warning substance is called “astonishing substance.” It is an important signal of protection between fish groups.