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Our planet may be home
我们的星球上
to 30 million different kinds of animals and plants.
可能有三千万种不同的动植物
Each individual locked in its own life-long fight for survival.
每个个体都在进行着 长达一生的生存奋斗
Everywhere you look, on land or in the ocean, there are extraordinary
不论是海中还是陆上
examples of the lengths living things go to to stay alive.
都有生物为了存活 各出奇招
This is the coast of Florida.
这是佛罗里达的海岸线
Here, strange scars on the sea bed
此地海床上的奇异烙印
hint at one animal's remarkable strategy.
隐隐透露出一种动物 让人啧啧称奇的生存策略
These are bottlenose dolphins,
这些是瓶鼻海豚
one of the most intelligent animals on Earth.
它们是世上最聪明的动物之一
Their prey is very elusive, fast-swimming fish.
它们的猎物是在海中 动作迅速，行踪飘忽的游鱼
But the dolphins have invented a completely new way of hunting.
但海豚发明了 一种崭新的狩猎方式
By beating its tail down hard, this dolphin stirs up the shallow silt.
这只海豚猛力拍击尾部 搅起浅海的淤沙
And by swimming in a tight circle
它绕着圆圈游泳
it creates a ring of mushrooming mud around a shoal of fish.
用一圈扬起的滚滚尘沙 绕住鱼群
