Can anything live forever?
長生不老可能嗎?

Yes. We are proud to introduce: the immortal jellyfish. What makes the jellyfish Turritopsis nutricula so special is that once it reproduces, it doesn't die, but transforms itself back into its juvenile polyp state. Their adult cells and the whole organism becomes "young" again. Barring any sea-borne dangers, there is no biological reason why it can't live forever.
可能。這里要介紹一種可以長生不老的水母。這種可以永生的水母叫做燈塔水母,它可以在性成熟后重新回到幼蟲階段(水螅狀態)。燈塔水母的所有成年細胞和其它生理機制都可以返老還童。只要不被天敵吃掉,理論上說,燈塔水母就可以做到長生不老!