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Grey reef sharks.
灰礁鲨
The reef's top predators, these sharks patrol the waters on strong currents.
暗礁的顶尖掠食者，这些鲨鱼在逆流中巡视海域
But without all the life on the reef here, they could never exist in such numbers.
没有生活在这里的一切，鲨鱼也不可能数量这么多。
They may be idle right now, but they won't remain this way for long.
此刻它们无所事事，但它们不会这样子太久的。
As night falls... it's feeding time.
当夜晚降临...这是进食时间
Needlefish stalk the coral shallows in search of food.
颚针鱼潜近珊瑚浅海寻找食物
Predators by day, at night they become the prey.
白天是掠食者，晚上成了猎物。
Speeding away at 20mph, the needlefish give the chasing sharks a run for their money.
时速20英里加速逃离，颚针鱼让追赶的鲨鱼你争我抢。
But it's hard to escape from so many.
要从这么多鲨鱼中逃脱很难。
