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Did you know that Turritopsis Nutricula is the only
animal/creature in the world that lives forever defying aging?
Its a jellyfish that was discovered in 2010 where it
replaces its old life cells with younger ones!
Though it’s been trumpeted elsewhere on the web as the
immortal jellyfish, Turritopsis nutricula is in fact age-defying rather than
immortal. If it is eaten or starves it will still die. But defying age is still
quite the accomplishment.
Turritopsis nutricula accomplishes this trick by a
process called transdifferentiation. This is just a process where one type of
cells turn into a different type of cells. Usually this process only happens
during organ regeneration.
In this process of transdifferentiation, the medusa of
the this jellyfish is transformed into the polyps of a new polyp colony. First,
the umbrella reverts itself and then the tentacles and mesoglea get resorbed.
The reverted medusa then attaches itself to the substrate by the end that had
been at the opposite end of the umbrella and starts giving rise to new polyps
to form the new colony. Theoretically, this process can go on infinitely,
effectively rendering the jellyfish to live forever. [source]
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