After weeks of marching their trek is coming to an end. 经过数周的长途跋涉 它们终于抵达了终点
It's a seasonal feast for animals of all kinds. 对所有动物来说 这是一场季节性的盛宴
It fell as rain a thousand miles away in the highlands of Angola 这些水来自数千英里外安哥拉高地的降雨
it follows the tracks of its mother, 它仍追随着母亲的脚步
At the peak of the dry season in the Kalahari 就在卡拉哈里旱季的最高峰时
For this pair sanctuary lies in the patch of woodland a few miles ahead. 对于这对母子而言 避难所就在前方几英里处的林地内
They're all heading for the swamps of the Okavango, 它们的目的地是奥卡万戈大沼泽
and thousands of elephants have started to travel in desperate search for water. 数千头大象开始长途跋涉 不顾一切地寻找水源
carry wet air to the middle of continents. 将潮湿空气带到了大陆中部
Deserts cover one third of the land's surface 沙漠覆盖了地球表面的1/3