看一看海鞘的基因组，你会感到讨厌和惊奇。

LOOK at the genome of a sea squirt and you'll get a nasty surprise.

这种独居的礁鱼常常独自或成对游荡，喜欢吃海绵和海鞘。

The solitary reef fish often travels aloneor in pairs and favors a diet of sponges and sea squirts.

在世界上所有的海洋，包括北冰洋，尾海鞘都是出没在浮游植物密度最大的水域表面。

Found in all the oceans of the world, including the Arctic Ocean, appendicularians tend to remain near the water's surface where the density of phytoplankton is greatest.

有些动物很可能可以在理想的环境下达到长生不老，比如海鞘、特定种类的珊瑚、九头蛇、灯塔水母（不死的海蜇）。

The animals that can possibly achieve immortality under ideal conditions, such as sea squirts, certain corals, Hydra, and Turritopsis nutricula (the immortal jellyfish), often activate telomerase.