- These vast aquatic grasslands stretch for fifteen hundred square miles
这片广大的海洋牧场 面积可达1500平方英里 - and, like terrestrial prairies, they support herds of grazers -- Dugongs.
像陆地上的大草原一样 这里也养育了大量的食草动物--儒艮 - Dugongs are the largest herbivores in the sea.
儒艮是海洋里最大的食草动物 - They can be three meters long and weigh half a ton
可以长到3米长,半吨重 - and they eat nothing but seagrass, mostly the fleshy risomes, which they excavate with their mobile lips.
它们除了海草什么都不吃 他们不停移动嘴唇,把海草的肉质根茎送到口中 - A herd can clear a patch of seagrass the size of a football pitch in a single day.
这群儒艮可以在一天内吃掉足球场般大小的海草 - Food is not evenly distributed in the tropical shallow seas and it can take a lot of finding
食物在热带海域的分布并不平均 所以要找到食物也不容易
They can be three meters long and weigh half a ton 可以长到3米长,半吨重
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