听力文本

This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
Humans can recognize each other by voice alone. I sound different from other 60-Second Science reporters, for example. In fact, lots of nonhuman animals, of all types, use voices to distinguish familiar individuals...including frogs, fish, lemurs, and penguins.
And that unique audio fingerprint extends to a sound you may have heard in the forest on occasion: (woodpecker drumming)...the drumming of a woodpecker.
Researchers recorded multiple drum rolls, (woodpecker drumming) from 41 great spotted woodpeckers—colorful red, white and black birds—living in Polish forests. They then used audio software to analyze them.

And they found that the length of the drumrolls, and the spacing between beats varied enough from bird to bird to tell the woodpeckers apart by drumming alone. The study is in the journal PLOS ONE.
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, for example, to count individuals in a given area. The birds' head-banging could thus do away with that research headache.
Thanks for listening for Scientific American — 60-Second Science. I'm Christopher Intagliata.

参考译文

这里是科学美国人——60秒科学_w7~N~LU@t。我是克里斯托弗·因塔利亚塔DGE7_H7FPYL。
人类可以仅凭声音识别出彼此u,PgElElY2J+。比如，我的声音和《科学美国人》其他播音员的不一样k@KDo#jb63。实际上，在所有动物当中，包括青蛙、鱼、狐猴和企鹅等在内的许多动物都能用声音来识别熟悉的个体!C%zf).JDjR3J-。
你可能偶尔在森林中也听到过这种独特的音频指纹：（啄木鸟啄木的声音）啄木鸟啄木的声音|s^r%pBvhhhjP09]uB。
研究人员记录了41只大斑啄木鸟啄木的声音（啄木鸟啄木的声音），大斑啄木鸟是红、白、黑色相间的鸟类，生活在波兰森林里QRaav|EUAA00C(w,-DPv。随后研究人员用音频软件来分析这些啄木录音RYnVxt;nVv7Y。
他们发现，每只鸟的啄木声在时长和节奏上的差别很大，足以仅凭啄木声分辨啄木鸟个体MlX~O_K3#jBof[HMnvP。这项研究结果发表在《公共科学图书馆·综合》期刊上R]oLae|uZBrU4f。
科学家认为，这一事实可能有助于啄木鸟辨认彼此U)0NhD)p1#FuT[=。而对保护生物学家来说，这一研究结果帮助他们在录音中辨认不同的啄木鸟，计算特定区域内的个体数量Ev8b5|ue&FzT。因此，啄木鸟的头部撞击可以消除这种研究上的麻烦e,@_5dhtr~498GXh。
谢谢大家收听科学美国人——60秒科学XEg9LuPRuZ]z。我是克里斯托弗·因塔利亚塔443)9,YN4Y。

译文为可可英语翻译，未经授权请勿转载！

重点讲解

重点讲解：
1. each other 彼此；互相；
They looked at each other and laughed.
他们彼此看了看便笑了起来%iaWk(JMG0p!Vc4pc2#。
2. in fact 事实上，其实；
In fact, those people have been promoted.
事实上，那些人已经升职了^Yp)kJ(mN!。
3. tell apart 区分；区别；辨别；
Even when magnified, the two organisms are difficult to tell apart.
即使放大之后，这两种有机体也难以区分T4,27Sa.noF.bDW。
4. do away with 消除；终止；废除；
I want them to do away with this barbarous custom.
我希望他们废除这种野蛮的习俗o&*gRf9QnR@+#2c@_T+。