Sailfish, three meters long, are closing in on prey. 3米长的旗鱼正在接近猎物
Now, in the light of day, the young are extremely vulnerable. 现在是白天,小海龟们很容易受到攻击
Frigates are the world's lightest bird, relative to their wingspan 阿森松军舰鸟是世界上最轻的海鸟之一 翼展特别长
The dolphin, as so often, are working as a team, 海豚经常团队合作
Thirty miles away, shoals of squid are jetting upwards towards the surface. 30英里外的海上, 大量的鱿鱼游到海面上
It's nearest living relatives are squid and octopus which, over evolutionary time, have both lost their shells 它是已经进化到已经没有壳的章鱼和乌贼的近亲
There are thought to be around thirty thousand such volcanoes 据估计海底共有30000座火山