Image via Wikimedia Commons The hydrozoan Turritopsis dohrnii, an animal about 4.5 millimetres wide and tall (likely making it smaller than the nail on your little finger), can actually reverse its ...

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Unlike the alien-like trilobites that have gone extinct, this species has gained fame for its ability to reverse its life cycle, a trait that makes it theoretically immortal. Like other jellyfish ...

And one hydrozoan, the immortal jellyfish (Turritopsis dohrnii), seen here in a water drop, has a life cycle that skips death: It reverts from a medusa back to a polyp. How, no one knows.

Scientists often encounter things beyond human comprehension. When studying jellyfish and their remarkable healing abilities, ...

The immortal jellyfish has the ability to switch back to its... younger self. And that's not it. When the jellyfish goes back into its previous life stage as a polyp, it also creates more ...

But unlike humans, they don’t die as a result of their own metabolisms — there doesn’t seem to be a built-in life expectancy ... type of jellyfish. It’s also known as “the immortal ...

Jellyfish have survived for over 500 million years, making them more ancient than the dinosaurs. Today these otherworldly creatures can be found around the world, from coastal shallows to the ocean ...

Much like the immortal jellyfish, comb jellies demonstrate regenerative ... starved jellies still began the de-aging process, returning to the life cycle that directly follows a larval state.