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Whale Songs
鲸鱼的歌声
One of the strangest sounds in the ocean is the song of a whale.
海洋中最奇怪的声音之一是鲸鱼的歌声。
There is still a lot of dispute about why whales sing.
关于鲸鱼为什么歌唱，仍有很多争议。
Some scientists believe that they are trying to attract mates.
一些科学家认为，它们是在试图吸引配偶。
Others think that whale songs are a form of communication, almost like a language.
其他人认为，鲸鱼的歌声是一种交流形式，几乎就像一种语言。
This is because individual whales sing with the same sound patterns as other whales in the area.
这是因为单个鲸鱼歌唱的声音模式与该地区的其他鲸鱼相同。
They also learn different sound patterns when they meet whales from different areas.
当它们遇到来自不同地区的鲸鱼时，它们也会学习不同的声音模式。
It’s also possible that singing helps whales to navigate.
唱歌也有可能帮助鲸鱼导航。
After all, it is very difficult to see underwater.
毕竟，在水下很难看清东西。
Whale songs can be useful for humans, too.
鲸鱼的歌声对人类也有用。
Scientists have started to use whale songs to map oceans.
科学家们已经开始使用鲸鱼的歌声来绘制海洋地图。
They do this by measuring the time it takes to hear an echo.
他们通过测量听到回声所需的时间来绘图。
This helps them to estimate the depth of the ocean floor.
这有助于他们估算海底的深度。
