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A tiny jellyfish called Turritopsis dohrnii can revert its adult cells back to a juvenile polyp when injured or starving, effectively restarting its life cycle and making it one of the only known animals with no fixed lifespan
1+ hour, 14+ min ago (1062+ words) The tiny Mediterranean jellyfish Turritopsis dohrnii can reverse its own life cycle — dissolving its adult body and reassembling as a juvenile polyp when injured or starving. A look at the biology of the only known animal that can, in principle,…...