Cambrian explosion

基本解釋

ONE of the greatest mysteries of the history of life is the Cambrian explosion.
寒武紀的大爆炸是生命史中最大的謎團之一。
The Burgess Shale came soon after a period of time known as the Cambrian explosion, when most major groups of complex animals arose over a surprisingly short period.
在寒武紀大爆發(fā)時期，主要生物種群的祖先在極短的時間內相繼出現(xiàn)，佈爾吉斯葉巖就是在這之後的不久形成的。
This period, from 1 billion to 540 million years ago, is known as the "Cambrian explosion" after the riot of diverse life found in the fossil record.
10億到5億四千萬年之間，就是在化石中發(fā)現(xiàn)許多生命之後的寒武紀大爆發(fā)時期。

Usually, these things happens in what seems like moments (traditional bank runs) or on the scale of eons (the Cambrian explosion).
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If you think about the Cambrian explosion of body plans or the rise of mammals, these were not the organisms that were best suited for their environments--they were really wild experiments in different sorts of space and possibilities.
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