如果你想讓約會給人留下深刻的印象,，帶她跳支快步舞吧,，但千萬別跳交際舞。至少對于侏儒鳥來說,，這是一個絕佳的建議,。
侏儒鳥
研究人員在英國《皇家學(xué)會學(xué)報B》網(wǎng)絡(luò)版上報告說，在求偶炫耀中,，如果跳舞的腳步輕盈,，這種雄性的熱帶小鳥會比它們的競爭對手有更多的交配優(yōu)勢。
通過觀看侏儒鳥交配舞蹈的高速錄像,，研究小組發(fā)現(xiàn),，那些動作比其他小鳥快幾十毫秒的家伙在雌鳥中是最有魅力的。一些高難度的特技動作,，例如后空翻,，看來也讓人印象深刻。
研究人員記錄了雄鳥的心率,，他們首次發(fā)現(xiàn),，心臟在求偶過程中全速跳動的雄鳥往往是更成功的“情人”,。研究人員表示，雌鳥可能認為雄鳥的高能量,、心肺功能和嫻熟的運動技巧是作為一名父親的優(yōu)秀特征,，并且是賦予后代的好基因。（生物谷Bioon.com）
生物谷推薦原文：
Proceedings of the Royal Society B: Biological Sciences DOI： 10.1098/rspb.2011.0382
Female choice for male motor skills
Barske, Julia; Schlinger, Barney A.; Wikelski, Martin; Fusani, Leonida
Sexual selection was proposed by Darwin to explain the evolution of male sexual traits such as ornaments and elaborate courtshipdisplays. Empirical and theoretical studies have traditionally focused on ornaments; the reasons for the evolution of elaborate,acrobatic courtship displays remain unclear. We addressed the hypothesis that females choose males on the basis of subtledifferences in display performance, indicating motor skills that facilitate survival. Male golden-collared manakins (Manacus vitellinus) perform elaborate, acrobatic courtship displays. We used high-speed cameras to record the displays of wild males and analysedthem in relation to male reproductive success. Females preferred males that performed specific display moves at greater speed,with differences of tens of milliseconds strongly impacting female preference. In additional males, we recorded telemetricallythe heart rate during courtship using miniature transmitters and found that courtship is associated with profoundly elevatedheart rates, revealing a large metabolic investment. Our study provides evidence that females choose their mates on the basisof subtle differences in motor performance during courtship. We propose that elaborate, acrobatic courtship dances evolvebecause they reflect motor skills and cardiovascular function of males.
