These outcrops are standing in Egypt's White Desert. 这些石头如今矗立在埃及的白色沙漠中
Star dunes like these can be 300 metres high. 这些巨型沙丘高达300多米
These sand scenes can be hundreds of miles across. 这些沙漠布景可宽达数百英里
Sandstorms like these appear without warning 如此巨大的沙暴出现时毫无征兆
Dromedaries, single-humped camels, take these storms in their stride. 单峰驼——只有一个肉峰的骆驼 顶着沙暴大步行走
Today less than a thousand of these desert specialists remain in the wild. 今天 这些沙漠专家的 野生数量已不足1000只
Few animals can survive these extreme changes. 只有少许动物能适应 这种极端的气候变化
These great scars on the face of the Earth appear to be lifeless, 这些地球脸上的大伤疤看似毫无生机
that made scientists question how these caverns were formed. 使科学家们产生了 这个巨洞如何形成的疑问
The only water Lechuguilla has are these wonderfully still clear pools. 龙舌兰洞中唯一的水 来自这些平静清澈的水塘