What started as a series of meltwater streams 最初的融水溪流
In the atmosphere, the major wind streams are changing direction. 在大气层中 主要气流正在改变方向
are returning to these streams to breed. 洄游至这些溪流以繁殖
...and these streams in Costa Rica 在哥斯达黎加的这条小溪里
Mexico's Yucatan Peninsula has no rivers, lakes or streams 墨西哥的尤卡坦半岛 没有河流、湖泊和小溪
Usually, these mountain streams only provide enough food for small animals to survive. 通常 山涧提供的食物 只能维持小型动物生存
In their upper reaches, mountain streams are full of energy. 上游地段的山涧充满活力
Growing from humble streams to mighty rivers 涓涓细流汇集成泱泱大河