因此想给雄性食米鸟上地理定位器标牌的研究人员通过播放雄鸟的叫声抓住它们，那声音听起来像《星际大战》成名机器人R2-D2的啾啾声。
So researchers who want to tag males with geolocators catch them by playing a recording of a male's call, which to human ears sounds like the chirps of R2-D2, the robot of Star Wars fame.
海豚另一有名的特点是它们可以使用独特的像声波定位器一样的敲击声来确定食物和障碍物的位置，每一头海豚都有自己与众不同的声音，他们靠发出这种声音互相交流。
They are well-known for the unique clicking sound they use like sonar to locate food as well as obstacles. Every dolphin has its distinctive individual whistling sound used for communication.
海豚另一有名的特点是它们可以使用独特的像声波定位器一样的敲击声来确定食物和障碍物的位置，每一头海豚都有自己与众不同的声音，他们靠发出这种声音互相交流。
They are well-known for the unique clicking sound they use like sonar to locate food as well as obstacles. Every dolphin has its distinctive individual whistling sound used for communication.
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