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Excitement far from land.
即使遠離陸地也有刺激的事情。
A school of dolphin five hundred strong.
一群多達500條的真海豚。
They've sensed there's food around, and they're racing to catch up with it.
它們感覺到附近有食物，開始加速追趕。
The news has spread. Now a number of schools are on their way.
消息傳開，大量的真海豚上路了。
They're heading towards the Azores, volcanic islands a thousand miles west of Portugal.
它們向亞速爾游去，葡萄牙以西1000英里的火山群島。
The dolphin scan the water ahead with their sonar. They're close to their target.
海豚利用聲納掃描大海。已經接近目標。
This is it. Scad mackerel.
這就是了。竹莢鯖。
It's difficult for a single dolphin to catch the fish.
單只海豚想吃它們是很困難的。
To avoid wasting energy the work as a group.
為了避免浪費精力，它們進行團隊合作。
They drive the fish upwards, trapping them against the surface
它們將魚兒趕上海面，目的是誘捕它們，
and there, other predators await them.
因為那里還有掠食者在等著魚兒們.
Cory's shearwaters. They're waiting for the dolphin to drive the prey closer to the surface.
猛鹱。它們正在等著海豚把獵物趕上水面。
Now the shearwaters can dive down on them, descending to twenty meters or more
猛鹱出動了，它們可以潛至20米甚至更深來捉魚。
and the dolphins block the baitball's retreat.
海豚們鎖定了從海面撤退的魚群。
The dolphins leave as soon as they've had their fill
海豚吃飽后迅速離開了，
and, at last, the mackerel sink below the diving range of the birds.
最后，竹莢鯖也逃出了猛鹱的攻擊范圍。
