Over ninety percent on the living space for life on our planet, is in the oceans 海洋占据着地球上90%的生存空间
Home to the biggest animal that exists 是现存的最大动物
it comes within the range of the seabirds. 又进入了海鸟的攻击范围
Out here, in the open ocean, there is nowhere for the baitfish to hide. 在这片空旷的海域中 这些小鱼无处可藏
that warns it's companions of it's intentions and also confuses the prey. 这可以警告同伴注意, 同时也可以迷惑饵鱼
As the shoal is driven nearer the surface, 当饵鱼被赶上海面的时候
To herd their prey, the predators raise their huge dorsal fins. 旗鱼张开大大的背鳍来把猎物赶到一起
A hundred miles from the Mexican coast, 距墨西哥海岸100英里,
Somewhere, beneath the surface below, there is the food it must have. 水下某个地方一定有食物
Those that fly above the ocean must be able to read the signs of fresh supplies, or perish. 飞越海洋的鸟类必须懂得寻找食物的踪迹, 不然就意味着死亡