Are all jelly fish immortal?

Turritopsis dohrnii is now officially known as the only immortal creature. The secret to eternal life, as it turns out, is not just living a really, really long time. It's all about maturity, or rather, the lack of it. read more

The Jelly fish actually clones it self and as it is a lot more simple that mammals are it is an easier process. It is part of the same but not exactly the same as the parent dies when it reaches adult development stage. However, not immortal even the Biblical accounts of the men of old have ended in some 800 to 1,000 years but not immortal. read more

Not all jellyfish are immortal, but apparent biologic immortality has been documented in one specific species of jellyfish known as Turritopsis nutricula —popularly referred to as the immortal jellyfish. read more

Wild Kratts Videos "Meeting the Immortal Jellyfish" – During the rescue of the Bowhead whale from Zach, Martin and Chris are thrown from the Tortuga, ending up in the Sea of Japan with a group of jellyfish. read more