Unlike the alien-like trilobites that have gone extinct, this species has gained fame for its ability to reverse its life cycle ... immortal jellyfish is incredibly hard to spot in the wild.

this jellyfish can revert to its polyp stage, essentially starting its life cycle over again. The immortal jellyfish's astounding ability has significant implications for scientific research ...

Turritopsis dohrnii follows a typical jellyfish life cycle, beginning as a larva and maturing into a polyp and then an adult medusa. However, it can revert to the polyp stage in response to stress ...