概述:比利时的科学家研究水虎鱼以得知关于它们制造的不寻常的声音的信息。
Hints:
piranha
swim bladder
Journal of Experimental Biology
Parmentier
Sandie Millot
University of Algarve
Portugal
校对:静xing
翻译:lahmmsc
组长:澈底
答疑:迷糊小美
At first the scientists thought the fish made just this one sound. But they learned that the piranhas produce two or more other sounds. When the fish are fighting for food and circling an opponent, they make a short, drum-like sound. When they bite each other, their jaws make a softer, croaking soun…
科学家一开始以为水虎鱼(食人鱼)只会发出这一种声音。然而,他们之后却发现这种鱼可以发出另外两种甚至更多的声音。当它们争夺食物或者围攻对手时,会发出一种短暂的、似鼓鸣的声音。当它们互相撕咬时,会从颚中发出一种柔和的、似蛙鸣的声音。 水虎鱼通过振动或摆动他们的鱼鳔而发出声音。这些充气器官帮助它们控制体…