Dolphins communicate like humans by calling each other by name.
Dolphins’ whistling calls include repeated information thought to be their names， but dolphins recognize these names even when voice cues are removed from the sound.
A kind of bottlenose① dolphins used names rather than sound to identify each other.
They were captured by nets when the wild dolphins came near the shore.Then in the shallow② water， their whistles③ were recoded before being synthesised④ on a computer with the caller’s voice features removed so that a computer voice of a dolphin was made.
Then the voice was played back through an underwater speaker to the dolphins， as a result， they responded strongly. This showed us that the dolphins know each other’s signature whistle instead of just the voice.
Dolphins have labels for each other like human beings.
① bottlenosen. 槌鲸(鲸鱼之一种)
② shallowadj. 浅的
③ whistlen. 口哨；警笛；汽笛；哨子
④ synthesisev. ［英］=synthesize 综合；合成
海豚能相互称呼“名字”
海豚和人类一样，通过称呼对方的“名字”进行交流。海豚的叫声中包含的一些重复信息是它们的名字，但即使将声音中的音色因素消除，海豚也能识别出这些名字。
一种宽吻海豚并非通过嗓音，而是通过“名字”（叫声的内容）来识别对方。
当海豚靠近海岸时，就被网住。 然后，在浅水区中，海豚的叫声被重新编码，用电脑随将叫声合成，并消除叫声的声音特点，这样就得到了每只海豚叫声的电子合成声。
接着，这种电子合成声被播放出来给海豚听，结果发现它们有强烈的反应。这也表明海豚能识别彼此的‘署名叫声’，而并不仅仅是嗓音。
海豚和人类一样拥有自己的‘名字’。