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Most flies don't havethe ability to hear.
大多數蠅類其實并沒有聽覺能力。
Certain parasitic flies have a hearing system that is so exact inpinpointing a sound's origin that it rivals the exceptional ears of owls and cats.
然而寄生蠅卻擁有能夠與貓頭鷹和貓媲美的聽覺系統，可以精確定位聲音來源。
This fly's superb hearing surprised scientists because its tiny body is too small to use the same kindof hearing system that larger animals use.
寄生蠅的這種超強聽力讓科學家十分吃驚，因為它的身軀太小，按常理來說應該無法像較大型動物那樣使用同樣的聽覺系統。
And yet they discovered that the fly was using its hearing to locate the chirps of crickets in order to then deposit parasitic larvae onto the crickets'bodies.
但是科學家們發現，寄生蠅可以通過自己的聽覺定位蟋蟀的叫聲，然后將寄生卵注入其體內。
What they found was unlike any other known ear structure, this fly's eardrums are connected bya bridge of stiff material.
科學家們發現寄生蠅的耳朵結構與其他生物不同，它們的耳膜由一種硬質材料鏈接。
Vibrations that travel between the two eardrums enable the fly to pinpointthe origin of a sound as accurately as any other sound system we know of.
耳膜間的震動使寄生蠅能夠定位聲音來源，其效果堪比我們知道的任何其他聲音系統那樣精確。
And what's more, this fly's exceptional hearing system is influencing microphone and hearing aidtechnology.
不僅如此，寄生蠅超凡的聽覺系統對擴音器和助聽技術也能產生影響。
For instance, it could lead to hearing aids that hide within a person's ear canal and yetare able to gather sound primarily from the direction the listener is facing.
比如，科學家可以借此研制出放在人類耳朵的助聽設備，使其能夠接收聽者所面對方向的聲音。
