科学美国人60秒 SSS 我有自己的声音
时间：2019-02-13 作者：英语课 分类：2018年科学美国人2月
Woodpeckers Drum to their Own Tune 1
Humans can recognize each other by voice alone. I sound different from other 60-Second Science reporters, for example. In fact, lots of non-human animals, of all types, use voices to distinguish familiar individuals… including frogs, fish, lemurs, and penguins 2.
人类只能通过语音来识别对方。例如我听起来与其他60秒科学记者有所不同。事实上，很多非人类的动物，都是用声音来区分熟悉的物种，包括青蛙，鱼，狐猴和企鹅都是如此。
And that unique audio fingerprint 3 extends to a sound you may have heard in the forest on occasion: <>... the drumming of a woodpecker.Researchers recorded multiple drum rolls, <> from 41 great spotted 4 woodpeckers--colorful red, white, and black birds--living in Polish forests. They then used audio software to analyze 5 them.
这种独特的音频指纹可以延伸到在森林里听到的声音：“啄木鸟的叫声”。研究人员记录了多个声音进行分析，“啄木鸟声” 啄木鸟是有着五颜六色的红色、白色和黑色的鸟，生活在波兰的森林里，然后他们使用音频软件来分析它们。
And they found that the length of the drumrolls, and the spacing between beats varied 6 enough from bird to bird to tell the woodpeckers apart by drumming alone. The study is in the journal PLOS One.
他们发现，鼓槌的长度和节拍之间的间距，在鸟与鸟之间是有很大差别的，通过单独的叫声来告诉啄木鸟。这项研究结果发表在PLOS One杂志上。
The scientists say this fact might be useful to woodpeckers, in identifying each other. And to conservation biologists, trying to tease one bird from another in a recording 7, for example, to count individuals in a given area. The birds' head-banging could thus do away with that research headache.
科学家们说，这个事实可能对啄木鸟在识别对方时是有用的。对于保护生物学家来说，试图在录音中挑逗另一只鸟，例如计算特定地区的个体。因此，鸟类的头部撞击可以消除这种头痛。
- He'd written a tune,and played it to us on the piano.他写了一段曲子，并在钢琴上弹给我们听。
- The boy beat out a tune on a tin can.那男孩在易拉罐上敲出一首曲子。
- Why can penguins live in cold environment? 为什么企鹅能生活在寒冷的环境中？ 来自《简明英汉词典》
- Whales, seals, penguins, and turtles have flippers. 鲸、海豹，企鹅和海龟均有鳍形肢。 来自《现代英汉综合大词典》
- The fingerprint expert was asked to testify at the trial.指纹专家应邀出庭作证。
- The court heard evidence from a fingerprint expert.法院听取了指纹专家的证词。
- The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
- Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。
- We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
- The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。
- The forms of art are many and varied.艺术的形式是多种多样的。
- The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。