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三叶虫是曾经生存在地球上的适应环境最成功的生物之一。最早的三叶虫出现在5亿多年前的寒武纪早期,最终绝灭于二叠纪的末期。在它3.5亿年的生存史中,三叶虫演化出了各种类型以适应不同的海洋环境。
Trilobite is one of the most successful organisms that once lived on Earth to adapt to the environment. The earliest Trilobites appeared more than 500 million years ago in the early Cambrian era, eventually extinction in the late Permian. In its 350 million year history of survival, trilobites have evolved various types to adapt to different marine environments.