☊ 碧瓏司の→ßeℒongŚ

MP3音檔 (按右鍵可下載聽)：
http://online1.tingclass.net/voaspe/…/20151202sa_science.mp3

🎁 

🎁 中英文稿：
How do you attract a mate? If you’re a male mouse, you take the Frank Sinatra approach—you sing. Scientists have known about crooning male mice for years. And past experiments showed that if you leave male mice alone with an unconscious female or even with just a trace of her urine, the males will sing. If you reverse roles, the females do not sing. So scientists believed that in courtship, males made all the noise. Until now.
你會怎樣吸引異性?如果你是一隻雄性老鼠，那麼可以採用弗蘭克•辛納屈的方法——唱歌。多年以來，科學家們就知道雄性老鼠會唱歌。以往的研究表明，如果讓一隻雄性老鼠與一隻無意識的雌性老鼠獨處，或者僅是留下雌性老鼠的尿液的痕跡，那麼這只雄性老鼠就會唱歌。但是如果角色互換，這只雌性老鼠不會唱歌。所以，以前科學家們認為在戀愛階段，所有的聲音都是雄性老鼠製造的。
“The problem with the field is that we’ve never had a way to figure out who’s vocalizing.” Neuroscientist Josh Neunuebel at University of Delaware. He realized that researchers needed better listening tools.
“這個領域的問題是我們從沒有弄清楚是誰在唱歌。”Josh Neunuebel是德拉瓦大學的一位神經科學家。他認為研究人員需要更好的聽力工具。
So Neunuebel built a mouse sized recording studio. His team lined a small closet with nylon mesh and foam, which absorb sound rather than reflect it. And they installed ultrasonic microphones, because mice make sounds at a frequency that’s above the range of human hearing.
所以，Neunuebel 建立了一個老鼠大小的錄音室。他的團隊排了一個由尼龍網布和泡沫製成的小櫃子。這個小櫃子不會將聲音反彈，而會將聲音吸收。並且他們在裡面安置了超聲波麥克風，因為老鼠的聲音頻率要高於人類的聽覺範圍。
That’s some mouse singing slowed down so we can hear it.
我們將老鼠的歌聲放緩，這樣我們就能聽到。
Neunuebel’s set-up made it possible for the researchers to determine that some songs were in fact coming from female mice. The gals that sang back to the males pursuing them also slowed down their pace, as if to say (Neunuebel’s voice): “Hey! I’m interested in you. Catch me if you can.” The study is in the journal eLife.
Neunuebel 的裝置能讓研究人員確定一些歌曲實際上是來自於雌性老鼠。對於雄性配偶的追求，雌性老鼠會用歌聲回應，同時也會放慢自己的腳步，似乎在說：“嘿!我對你很感興趣。你來追我啊!”該研究結果發表在《eLife》雜誌上。
Neunuebel still wants to work out more details about how these interactions occur. But with improved technology, maybe the researchers can pick out pick-up lines. At least the ones that sound nice…to mice.
Neunuebel 仍想要研究更過關於這些交流發生的細節。但是隨著技術進步，研究人員可以選擇挑選搭訕語。至少，那些對於老鼠來說...好聽的聲音。
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