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Male Bird Links Its Call to Deadly Enemy to Get Female Attention

追美眉？來點恐怖場景吧

It’s one of the oldest moves in teen dating. Head to a scary movie. As soon as the scary music kick in, your date cuddles closer for comfort. Well, some birds may have the same idea. Splendid fairy-wrens are small, sexually promiscuous birds native to Australia. It turns out that males get the attention of potential mates by making their move after a predator announces its presence. The research was published in the journal Behavioral Ecology.

青少年約會時去看恐怖電影已經(jīng)見怪不怪了?？植酪魳芬婚_始，你的約會對象就會抱緊你以求安慰。其實，某些鳥類也有這種想法。色彩鮮艷的細尾鷯鶯是澳大利亞的本地鳥類，它們體型嬌小，而且喜歡性濫交。現(xiàn)已證明這種雄鳥為了吸引潛在配偶的注意，會在食肉動物發(fā)出聲音后采取行動。該項研究刊登在《行為生態(tài)學(xué)》雜志上。

[Bird sound] That’s the sound of butcher-birds, which prey on splendid wrens. Every time male wrens hear that cry, they sing this in response [wren sound]. Researchers say the calls become layered atop one another, almost like a duet.

[鳥兒的聲音]這是屠夫鳥的聲音，它們會捕食這種美麗的鷯鶯。每當(dāng)雄性鷯鶯聽到屠夫鳥的啼叫，它們就會這樣回應(yīng)[鷯鶯的聲音]。研究人員表示，這種聲音一層疊著一層，像二重唱似的。

The scientists tested the response of female wrens by playing recorded bird calls. They played just the male fairy-wren call. Then they played the trill of the wrens singing immediately after the butcher-birds. The females became significantly more alert—looking to the sound or singing in response—after hearing the two calls together than they did if they heard just the wren. And so for both teens and wrens, a bit of fear might help a guy get the chick.

科學(xué)家通過播放錄制的鳥類啼叫來考察雌性鷯鶯的反應(yīng)。他們先單獨播放雄性細尾鷯鶯的聲音，然后再播放緊接著屠夫鳥叫聲的鷯鶯囀鳴。與只聽到鷯鶯叫聲相比，雌性鷯鶯在聽到兩種聲音混合時更加警覺，會盯著聲音發(fā)出的地方。因此，對于青少年和鷯鶯來說，一點點的恐懼可以幫你泡到美眉哦。^-^

—Cynthia Graber?

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