43+ Immortal Jellyfish Size PNG. It is probably the only animal in the world that can leap back toward its first stage of lifecycle and then return to life again. The supposedly 'immortal' jellyfish turritopsis dohrnii has captivated scientists since it was discovered decades ago.

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A potentially immortal jellyfish species that can age backward—the benjamin button of the deep—is silently invading the world's oceans, swarm by swarm, a recent study says. The immortal jellyfish uses a stolon that runs along the ground like strawberry runners. © takashi murai/the new york times.

A species of jelly, turritopsis dohrnii, is able to cheat death, curling into a ball (signaling the end for most species).

Whenever it is injured or dying, it can turn its cells back into young cells and. © takashi murai/the new york times. Not having a brain, is the jellyfish not an individual? This tiny creature, the size of a human pinky nail when fully developed, was first discovered in 1883.