Immortal Jellyfish: Cheating Death's Game

Unlike most jellyfish, Turritopsis dohrnii, or the immortal jellyfish, can reverse its life cycle. When stressed, it transforms from medusa back into a polyp, effectively rejuvenating itself. This process, called transdifferentiation, allows it to potentially live indefinitely. However, it's not truly immortal; predators still pose a threat. Its global spread is likely due to human activities, particularly ballast water in ships.