为了适应环境的变化,地球上的许多物种的身体结构均不同程度地发生了变化,那些无法适应环境变化的物种已经灭绝。不过,仍有一些物种数亿年来它们的身体结构几乎未出现什么变化,始终处于进化的起跑线上,它们被称为“活化石”物种。最近,美国《连线》杂志列举了全球12种具有代表性的“活化石”物种,其中一些是濒临灭绝的稀有物种。 In order to adapt to changes in the environment, the physical structure of many species on Earth has changed to varying degrees. Species that are unable to adapt to environmental changes have become extinct. However, there are still some species that have barely changed their physical structure for hundreds of millions of years and are always at the starting line of evolution. They are called “living fossils.” Recently, the United States “Wired” magazine lists 12 representative “living fossils” species, some of which are rare species on the verge of extinction.