An Inside Look At Immortal Jellyfish
The scientific name of Immortal Jellyfish is Turriropsis dohrnii. They are a species of small
jellyfish that are found in the Mediterranean Sea and off the cost of Japan.
What makes them immortal, you ask? Well, scientist have found that these creatures are the only known case of animals being able to revert from the stage of being sexually mature, back to being sexually immature. Like most other jellyfish, this species starts its life out as tiny larvae called planula. After the planula comes the polyp stage, where the jellyfish colonize and attach themselves to the sea floor. After that comes the medusae stage, which looks like what we know to be a jellyfish. A cool fact about medusae, is that since they all come from the same planula that rooted itself to the sea floor, they all share identical genetics. With this specific species, if it is exposed to environmental stress of physical assault then it has the ability to reverse its sexual maturity and revert back to the polyp stage, forming a new polyp colony. The reversal of this species' being starts with the deterioration of the bell and tentacles. Then it shrinks down to polyp form, reversing the entirety of it's growth process.

