The Immortal Jellyfish
Animal Facts

The Immortal Jellyfish

Discover the jellyfish that can literally reverse its aging process and become biologically immortal.

The Turritopsis dohrnii, also known as the "immortal jellyfish," is a species of small jellyfish that has the remarkable ability to revert back to its juvenile polyp stage after reaching sexual maturity. This process, called transdifferentiation, allows the jellyfish to essentially restart its life cycle, making it biologically immortal under the right conditions.

Scientists have been studying this fascinating creature to understand the mechanisms behind its age-reversal capabilities. While individual jellyfish can still die from predation or disease, theoretically, they could live forever if conditions are ideal.