BreakingNews·191020 - 世界上跑得最快的蚂蚁，和人类一样，时速580公里
Scientists have discovered the world's fastest ant. It is the Saharan silver ant. It runs at a speed of just over 3kph, but that is the same ant speed as a human running 580kph. The ant runs 108 times the length of its own body every second. This is quicker than an Olympic 100-meter runner. The world's fastest man, Usain Bolt, ran the 100 meters using 4 strides a second. The Saharan silver ant uses up to 50 strides a second. The scientists say this much movement almost breaks the limits of what is physically possible for a living thing. Each of the ants' feet makes contact with the ground for a very short time. The ants' feet touch the ground for just seven milliseconds before they take the next stride.
科学家发现了世界上最快的蚂蚁。这就是撒哈拉银蚁。它以每小时3公里的速度奔跑，但这和人类跑580kph的速度是一样的。蚂蚁每秒钟跑的距离是自己身体长度的108倍。这比奥运会的100米跑还要快。世界上跑得最快的人尤塞恩·博尔特以每秒4步的速度跑完100米。撒哈拉银蚁一秒钟走50步。科学家们说，如此多的运动几乎打破了生物在物理上的极限。蚂蚁的每只脚与地面接触的时间都很短。蚂蚁的脚接触地面的时间只有7毫秒，之后它们就会迈出下一步。
The scientists said the Saharan silver ant runs so fast because it lives in the hot desert. The sand can reach temperatures of up to 60 degrees Celsius, so the ant wants to spend as little time as possible with its feet on the scorching ground. Another reason is that if the ants' feet spend a longer time on the sand, they will sink a little and slow the ant down. Professor Harald Wolf wrote about why the ants' feet move so fast. He said: "These features may be related to the sand dune habitat. They could prevent the ants' feet from sinking too deeply into the soft sand." Professor Wolf told CNN: "We knew these ants would be fast, but nobody knew how fast exactly, and how they would achieve that speed."
科学家们说，撒哈拉银蚁之所以跑得这么快，是因为它们生活在炎热的沙漠里。沙子的温度可以达到60摄氏度，所以蚂蚁想要在灼热的地面上花尽可能少的时间。另一个原因是，如果蚂蚁的脚在沙子上停留的时间更长，它们会下沉一点，让蚂蚁慢下来。哈拉尔德·沃尔夫教授曾写过蚂蚁的脚为什么移动得这么快。他说:“这些特征可能与沙丘栖息地有关。它们可以防止蚂蚁的脚在松软的沙子里陷得太深。”沃尔夫教授告诉CNN:“我们知道这些蚂蚁会很快，但没有人知道它们到底有多快，以及它们是如何达到这种速度的。”
科学家发现了世界上最快的蚂蚁。这就是撒哈拉银蚁。它以每小时3公里的速度奔跑，但这和人类跑580kph的速度是一样的。蚂蚁每秒钟跑的距离是自己身体长度的108倍。这比奥运会的100米跑还要快。世界上跑得最快的人尤塞恩·博尔特以每秒4步的速度跑完100米。撒哈拉银蚁一秒钟走50步。科学家们说，如此多的运动几乎打破了生物在物理上的极限。蚂蚁的每只脚与地面接触的时间都很短。蚂蚁的脚接触地面的时间只有7毫秒，之后它们就会迈出下一步。
The scientists said the Saharan silver ant runs so fast because it lives in the hot desert. The sand can reach temperatures of up to 60 degrees Celsius, so the ant wants to spend as little time as possible with its feet on the scorching ground. Another reason is that if the ants' feet spend a longer time on the sand, they will sink a little and slow the ant down. Professor Harald Wolf wrote about why the ants' feet move so fast. He said: "These features may be related to the sand dune habitat. They could prevent the ants' feet from sinking too deeply into the soft sand." Professor Wolf told CNN: "We knew these ants would be fast, but nobody knew how fast exactly, and how they would achieve that speed."
科学家们说，撒哈拉银蚁之所以跑得这么快，是因为它们生活在炎热的沙漠里。沙子的温度可以达到60摄氏度，所以蚂蚁想要在灼热的地面上花尽可能少的时间。另一个原因是，如果蚂蚁的脚在沙子上停留的时间更长，它们会下沉一点，让蚂蚁慢下来。哈拉尔德·沃尔夫教授曾写过蚂蚁的脚为什么移动得这么快。他说:“这些特征可能与沙丘栖息地有关。它们可以防止蚂蚁的脚在松软的沙子里陷得太深。”沃尔夫教授告诉CNN:“我们知道这些蚂蚁会很快，但没有人知道它们到底有多快，以及它们是如何达到这种速度的。”
