海洋佔地球表面70%以上的面積
從近地淺灘到最深一萬多公尺的海溝
環境複雜多樣,生態複雜。
而且六億年前水裡就孕育出最早的動物
而陸地要一直到四億多年前
才開始出現完全陸生的動物。
中間經歷過火山爆發大地震隕石撞地球
海洋受到的衝擊都比陸地小
這麼多優良的條件
為什麼現在只有陸地有文明
卻沒有海洋或湖泊文明之類的出現?
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