[omeid2]

You wish —jellyfish.

https://en.wikipedia.org/wiki/Turritopsis_dohrnii

[zaarn]

I don't think any of them survived that long. Current record holders are some bacteria in the Russian permafrost with half a million years (without reproduction in the meantime)

[pouta]

This was an amazing read. Thank you for sharing this!

[dEnigma]

I doubt that any "immortal jellyfish" has actually lived that long in the wild, even though they have the theoretical potential to do so.