But the channels are also the playground for restless young macaques.
水道也是頑皮的小猴子們的游樂場
Some of the young have even taken to underwater swimming.
有的小猴甚至已經學會潛泳
They can stay down for more than 30 seconds and appear to do this just for fun.
它們能在水下呆30多秒,而它們這么做似乎只是因為好玩
Yet these swimming skills acquired during play
但是,這些在玩耍中學會的游泳本領
will certainly be useful later in life in these flooded mangrove forests.
將來會成為在紅樹林中非常有用的生活技能
In cooler climes, mud laid down in estuaries is colonised by salt marsh grasses,
在較冷的地區,沉積在入海口的泥沙被大片鹽沼水草覆蓋
and form one of the most productive habitats on the planet.
成為地球上一處最肥沃的野生動物棲息地
Four hundred thousand greater snow geese flock to the estuaries along the Atlantic coast of the United States
40萬只大西洋雪雁成群飛往美國大西洋海岸的河口地帶
to rest and refuel on their long migratory journeys.
并在此休整,準備繼續長途遷徙
This is the end of the rivers' journey.
這是淡水之旅的終點
Collectively, they've worn down mountains and carried them to the sea.
它們共同撫平高山,把它們帶向大海
And all along the way, their fresh water has brought life in abundance to planet Earth.
在整個行程中,淡水為地球帶來了無數生機與富饒。