All the world's great broad waterfalls, Victoria, Niagara and here, Iguagu,
所有世界上最大的瀑布,維多利亞瀑布、尼亞加拉瀑布,還有這里的依瓜蘇瀑布
are only found in the lower courses of their rivers.
都是位于河流的下游地段
In their final stages, rivers broaden and flow wearily across their flat flood plains.
在旅途的最后階段,河道變寬,河水緩緩流過平坦遼闊的沖積平原
Each wet season here in Brazil,
這里是巴西,每到雨季
the Parana river overflows its banks and floods an area the size of England.
巴拉那河都會(huì)泛濫,洪水淹沒的地區(qū)相當(dāng)于一個(gè)英格蘭
The Pantanal, the world's largest wetland.
潘塔納爾沼澤地,世界上最大的濕地
In these slow-flowing waters, aquatic plants flourish,
緩慢的流水中生長著茂盛的水生植物
like the Victoria Giant Water Lily, with leaves two-metres across.
譬如有著2米寬葉子的王蓮
These underwater forests are nursery grounds for fish.
這些水下森林正是魚類理想的“育嬰”場所
Over 300 species breed here, including red-bellied piranha.
大約有300多種動(dòng)物在此繁殖,其中包括紅腹鋸脂鯉
And other predators, like the spectacled caiman.
以及其它食肉動(dòng)物,例如眼鏡凱門鱷。