摘要
信息技术和网络的飞速发展让我们生活的世界似乎变小了，有人甚至称现在进入了“地球村”时代。发达的交通缩短了国家间的距离。但是这个“变化”是相对的，而一些动物就在我们眼皮底下变小了,并且以后的几百年还会小下去。你有没有在农村生活的经历？如果你碰到老鼠的话，你会发现一些成年老鼠只有4厘米。8厘米长。为什么变这么小？物竞天择!现在农村的室内地面普遍硬化，窗户也比较密闭，为了生存，老鼠选择了把身体变小，只有如此，它们才能钻进洞里。
The rapid development of ilfformation technology and intemet makes the world we live in seem smaller, some even say the earth has become a big village. The dis- tanee between nations is shortened by the convenient traffic. This change is ＂rela- tively＂ , but many animals are shrinking just before your eyes, and they will become ever tinier in the centuries Io come.
