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|  全文請訂閱Student Post - 優惠如下 |
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| ■DiscoverJuly 29, 2012 |
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| Mass extinctions - Scientists learn why some species survive when those around them perish |
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| 大規模滅絕 - 科學家試圖了解其他物種滅絕時，部分物種為何能存活 |
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| Evolution is a series of crashes and recoveries. Periodically the Earth experiences something that kills off 70 to 90 percent of all species. Since the dawn of complex life 600 million years ago, the... |
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| 演化是由一連串物種毀滅與重生所構成的。地球會週期性地發生造成七到九成物種滅絕的事件。自複雜生物於六億年前出現以來，地球已經歷了五次這類「大規模滅絕」，接著則是存... |
