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One and a half billion years ago, the Earth is a beautiful blue ball,
15億年前，我們的美麗藍色球體，
dotted with volcanic islands.
點綴著火山島。
Over millions of years, a mysterious force rearranges these islands.
數百萬年下來，我們發現有什么在重新排列島嶼，
Hidden beneath the ocean, the Earth's crust breaks into vast plates.
藏在海底的地殼裂成巨大板塊，
But even deeper, the Earth's core is so hot that it generates movement in the rock beneath the crust.
深處的地心，地殼下的巖石因高溫而移動，
These movements push and pull the plates
這些移動推拉地球各處的板塊，
around the globe, carrying the oceans and islands with them.
同時帶著海洋和島嶼。
Our planet is alive, and changing.
我們的星球是有生機的，是不斷變化的。
Over 400 million years a vast new super continent takes shape.
4億多年下來，一起全新的超大陸地成形，
It's called Rodinia.
它叫羅迪尼亞。
In the shallow waters surrounding Rodinia,
在羅迪尼亞周遭的淺水里，
stromatolites work their magic for more
疊層石發揮魔力20多億年，
than two billion years, pumping oxygen into the atmosphere.
為大氣注入氧氣。
The temperature is 85 degrees.
氣溫是30攝氏度，
And the days are 18 hours long.
一天持續18個小時。
But this planet looks more like Mars than Earth.
但這時的地球看起來比較像火星。
To find life, we must fast forward through time.
要找到生命，我們就得讓時間快轉。
