Dear A Moment of Science, I know that around 250 million years ago the Earth was a lot hotter than it is today.
親愛的科學一刻,我知道大約在2.5億年前,地球要比今天熱的多的多。
So I'm wondering what that meant, exactly?
所以,我就在想這到底意味著什么?
How did the planet look different than it does today?
那時的地球相比今天而言有多大的不同呢?
Well, the Earth was different in lots of ways hundreds of millions of years ago.
幾億年前的地球與今天相比在很多方面都有所不同。
One major difference linked to warmer global temperatures was that Antarctica was not the icy, barren waste land it is today.
最主要的一個差異與全球溫度有關,那就是南極當時并不像今天這樣是一片被冰雪覆蓋的荒蕪之地。
In fact, it was covered by forest.
事實上,當時的南極是一片森林。
Really? What kind of forest?
真的嗎?什么樣的森林呢?
That's what scientists are trying to figure out.
科學家們也在試圖尋找答案。
Fossilized leaf impressions seem to show that mats of leaves once covered the ground.
從樹葉化石的痕跡來看,當時的地表被層層的樹葉所覆蓋。
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