It is indeed amazing and absolutely true – when the medusa (adult jellyfish) or Turritopsis Dohrnii comes to the end of its life, it descends to the ocean’s depths and commences decomposition – it starts to decay but remarkably, its cells then reassemble, not into another medusa, but into polyps.
From these polyps, new jellyfish are born. In essence, the jellyfish reverts to a previous stage of its life cycle, thus beginning life anew.
This extraordinary capability has led to it becoming known as the “immortal jellyfish.”