The Immortal Jellyfish: The Animal That Can Restart Its Life

Meet Turritopsis dohrnii, a tiny jellyfish with one of the strangest abilities in the animal kingdom.

When this jellyfish experiences severe stress, injury, or aging, it can reverse its development and return to an earlier stage of its life cycle. Through a remarkable biological process called transdifferentiation, specialized adult cells can transform into other cell types.

The result is extraordinary: the adult jellyfish can return to a polyp stage and begin developing again.

This doesn't make the animal invincible. It can still be eaten by predators, become sick, or die from environmental causes. But it appears to avoid death from old age.

That is why Turritopsis dohrnii is popularly known as the immortal jellyfish.

A tiny creature. A remarkable biological trick. And one of nature's most fascinating mysteries.

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