And this by-catch, as it's known, 这种被称为副渔获物的意外捕获
to form towering chimneys, known as hydrothermal vents. 形成高耸的烟囱状 被称为深海热液喷口
This is the largest known gathering of octopus in the world. 这是世上已知的最大规模的章鱼聚集群
The least known parts of it are its great depths. 这之中最不为人知的区域是海洋深处
This family are the only orca known to hunt rays like this... 这一家子是已知的虎鲸群中 唯一用这种方式捕猎蝠鲼的
little was known to outsiders about Raine Island. 外界对雷恩岛知之甚少
..to a special place she has known all her life. 去往一个它一生都熟悉的特殊地方
They're the fastest growing marine invertebrates known. 这是已知长的最快的海洋无脊椎动物
One and a half miles down, at a site known as Nine North 距海面一英里半,一个叫北九地区的地方
Known as General Sherman, it's the weight of ten blue whales. 谢尔曼将军树有十头蓝鲸那么重