During the Cambrian period, 500 million years ago, worm-like creatures were evolving into fish-like creatures.

在5亿年前的寒武纪，似蠕虫生物逐渐演化成似鱼生物。

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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.

10亿到5亿四千万年之间，就是在化石中发现许多生命之后的寒武纪大爆发时期。

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To be born during this, the Cambrian Explosion—why, I couldn't imagine a better period, really.

在寒武纪生物大爆发这时候降生-我实在没法设想一个更好的时代了，真的。

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"An increase in land plant abundance may have occurred at the time just before the period known as the Cambrian Explosion, when the next Snowball Earth period failed to occur because temperatures did not get cold enough, " he added.

BBC: Earth AP