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.
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。
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