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The immortal jellyfish that can restart its life cycle

Original: Meet Turritopsis dohrnii, the immortal jellyfish. When injured, old, or starving, it sinks to the seafloor, folds itself

Turritopsis dohrnii, a tiny jellyfish found in oceans worldwide, can revert to its juvenile polyp stage when injured, old, or starving, effectively restarting its life cycle indefinitely. This process of transdifferentiation makes it one of the only known biologically immortal animals, drawing renewed attention from science communicators and nature enthusiasts online.

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Turritopsis dohrnii

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• Meet Turritopsis dohrnii, the immortal jellyfish. When injured, old, or starving, it sinks to the seafloor, folds itself back into a polyp — its baby stage — and starts life over. It can repeat the cycle indefinitely, making it one of the only biologically immortal animals we… · eatrics · 6

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