Turtle navigation discovery 新发现：绿海龟辨别方向的方法
China DailyTurtle navigation discovery 新发现：绿海龟辨别方向的方法 Play audio file 绿海龟是怎样在漫无边际的海洋中航行、找到阿森松岛的沙滩并在那里搭窝的？科学家们对它们的这一习性有了新的见解。 文字稿 Every year between December and June, thousands of green sea turtles migrate. 现在，他们研发出了一个模型来模拟绿海龟的那段艰辛征程。科学家们发现，该物种使用一系列微弱的线索来辨别方向，而不是靠可能引导它们偏离航线的大线索。这是有道理的，因为依靠单一的线索来定向，比如其体内的生物罗盘，可能使它们对变化十分敏感。 The scientists say that understanding how fish, animals and birds navigate could help them figure out how to protect those that are endangered, as well as what factors might affect their behaviour. 词汇 migrate （动物）迁徙 crawling 缓慢地爬行 remote 偏远的，遥远的 simulates 模拟 arduous 艰辛的，艰巨的 weak cues 弱线索 off course 偏离方向 navigating 用来确定、辨别方向的 render 使变得 figure out 理解，弄清楚 2. The scientists say that understanding how fish, animals and birds navigate could help them work out how to protect those that are endangered – such as the green sea turtles.
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