Pickings are usually thin for the salamanders, 大鲵的收获通常都比较少
but every year some of the world's high rivers are crowded by millions of visitors. 而世界上的高山河流每年都将 迎接成千上万的来访者
There are advantages to life in the fast stream - 这些动物拥有在急流中生存的先天优势
In their upper reaches, mountain streams are full of energy. 上游地段的山涧充满活力
Yet these precious waters are rich with surprise. 可是这些珍贵的淡水中却充满了惊奇
At last they are over the highest barrier that lies in their way. 最后它们终于翻越了旅途中最高的障碍
By late morning ferocious winds are roaring past the peaks. 晌午时分 群山间狂风大作
but the chances of the cub reaching adulthood are slim. 但是熊猫幼崽长到成年的机会极为渺茫
These forests are a host to a rich variety of springtime migrants. 这些灌木林也是许多种春季候鸟的家园