- but their mothers have made this journey before
不过它们的母亲以前也经历过这种旅行 - and they know that they're close to water.
它们很清楚水就在不远的前方 - After many hundreds of miles they've arrived.
在完成数百英里的行程之后 它们终于抵达了目的地 - The lives of these elephants are dominated by the annual rhythm of wet and dry,
这些大象的生活决定于 一年一度的干湿季节交替 - a seasonal cycle created by the sun.
这是太阳造成的季节循环 - At the southern end of the earth,
在地球的最南端 - after four months of total darkness,
经历了整整4个月的黑暗后