How long do immortal jellyfish live?

Answer 1

Turritopsis dohrnii, is a hydrozoan commonly called "immortal jellyfish." These jellyfish have the ability to revert back to the polyp stage if they are under environmental stress. Their cells do this by changing what type of cells they are, called transdifferentiation.

Answer 2

Technically, yes. A jellyfish never dies a natural death of old age. When they reach an old age they revert to the polyp stage. I am no biologists, so I can't really break it down as well as someone else could. But it is entirely possible there are jellyfish who are millions of years old. However, bear in mind that while they may not die of old age, disease and, well, being eaten can end a jellyfish, so odds are most jellyfish are not millions of years old. Still, it is kind of cool to think about.

Answer 3

Because of its ability under certain circumstances to transform from medusa back to the polyp stage, thereby escaping the death that typically awaits medusae post-reproduction if they have not otherwise been eaten by some other ocean organism.

Answer 4

Turritopsis dohrnii can live forever

Answer 5

an immortal jellyfish also known as Turritopsis dohrnii.

Answer 6

Theoretically, forever.

Answer 7

Yes.

Answer 8

50000000000000000000000000000000000000000000 years

Answer 9

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