只有雄鲸才歌唱，并且每个都有自己的音色。
Only male humpbacks sing, and each group of whales sings its own tune.
雄鲸将叹息，哭泣和尖叫组合起来，形成有特色的歌声。
Male humpback whales combine groans, cries and shrieks into repeated patterns to make up their signature song.
一个种群中所有的雄鲸都唱同一首歌，但是偶尔他们也会发明一首全新的歌。
All the males in one population sing the same song, but occasionally they invent an entirely new one.
一个种群中所有的雄鲸都演奏同样的歌声。但是偶尔他们也会发明一首全新的歌。
All the males in one population sing the same song, but occasionally they invent an entirely new one.
这个洞现在正在被填补起来——这归功于角鲸，一种中等大小的，北极特有的鲸，因为雄鲸长着一个螺旋纹的长牙而被称为海中的独角兽。
That hole is now being filled - thanks to narwhals, medium-size whales, endemic to the Arctic, known as unicorns of the seas because of the single, spiralling tusk found in males.
没有人知晓这些歌的真实目的，是向雌鲸奉献的情歌？抑或是让其他雄鲸远离的警告？不管怎样，这迷人的歌声仿佛是来自另一个世界。
No one knows for sure what the purpose of these songs is, whether they are love songs to the females or warnings to other males to stay away, but they have a mesmerizing, other-worldly quality.
为了测试他的这感觉，帕克的团队于1997年到2002年再夏威夷海域附近观察了42个竞争性的鲸鱼群，这些一条雌鲸被多条雄鲸所包围。
To test this hunch, Pack's team observed 42 competitive groups--those with one female surrounded by varying numbers of males--in the waters around Hawaii from 1997 to 2002.
为了测试他的这感觉，帕克的团队于1997年到2002年再夏威夷海域附近观察了42个竞争性的鲸鱼群，这些一条雌鲸被多条雄鲸所包围。
To test this hunch, Pack's team observed 42 competitive groups--those with one female surrounded by varying numbers of males--in the waters around Hawaii from 1997 to 2002.
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