美国科学60秒 SSS 2013-04-18（在线收听）

 　　If you've ever tried out a flirt up at a party or a club or maybe a construction side, you'll know it can be tough making yourself heard above the din. One solution is to go home and text your love interest. But a more immediate one, is to shout. And that is pretty much the approach of male grasshoppers take when the roar of traffic treantens to drown out their mating calls. The results appear in the British ecological Society Journal Funtional Ecology. Lots of animals use sounds to woo a potential partner. But what happens when an unnaturally noise environment all but overwhelms such romantic intridies. To see how grasshoppers cope with vehicular clamor, researchers collect about 200 males half from the stripe along the highway. Then they showed the lads a female and recorded the results. It turns out that compare to males lives some place quiet, the roadside chripers selectively boosted the bass notes in their love song, percisely the part that would have gotten lost during rush hour.