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The slightest miscalculation
即便最微小的失误
and the snake is left with a mouthful of feathers.
也会导致狩猎的失败
The dropped meal is tracked down mainly by smell,
蛇只能通过嗅觉寻找失去的美味
the viper using its forked tongue
毒蛇用分叉的舌头
to taste the air until it is close enough to see its quarry.
分辨空气来靠近追逐的猎物
The final challenge is to swallow a meal that's twice the size of its head.
最后的挑战是吞下自己头部两倍粗的食物
It does so by dislocating its jaws and positioning its prey
蛇能让下巴脱臼并合理安排食物的方向
so the beak is pointing backwards.
使鸟嘴指向后边
For the reptiles, this time of plenty is all too brief.
对于爬虫来说，充足的时间也很短暂
In a couple of weeks, the migration will be over
再过几个星期，迁移就要结束了
and the birds will have moved on.
鸟群会继续前进
This could be the snake's last meal for six months.
这可能是蛇六个月中的最后一餐
But it isn't just islands
但是并不是岛上会经历
that experience cycles of feast and famine.
盛宴和饥馑的循环
The sea, too, has its seasons,
海也有季节变化
a fact well known to fishing communities along the neighbouring coasts.
沿岸的渔民都知道这个变化
In Chuwang harbour,
在初望港
the start of a new fishing season provides the excuse for a massive party.
盛大的聚会是新汛期开始的证明
But for boat owner Mr Zhao,
但是对于船主老赵来说
it's a day of prayer as well as celebration.
既有庆祝又有祈祷
Zhao hopes that by presenting gifts and showing respect to the sea goddess,
老赵希望通过祭祀海神
he can help ensure a prosperous and safe year ahead
来确保他们来年捕鱼
for him and his crew.
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