Only, they do not live forever, but return to their hydroid form through a series of life activities after a change in the surrounding environment or injury.
Hydrozoans can grow and develop into adult jellyfish.
This process of rejuvenation is theoretically infinite, so it can also be said that they can live forever.
A, lighthouse jellyfish really eternal life jellyfish have many different species, the difference between these different species is relatively large, their life expectancy is different.
Most jellyfish species have a relatively short lifespan.
But there is a special type of jellyfish that is known as the "immortal jellyfish", which is the "lighthouse jellyfish" that will be introduced next.
These are small jellyfish with a diameter of only 4-5 millimeters.
They are shaped like lighthouses, hence their name.
In fact, although they are called "immortal", they are actually just rejuvenated.
The lighthouse jellyfish can return to their younger, hydrozoan stage after they have reached adulthood.
They slowly redevelop from this state into adult jellyfish.
There are more than a few reasons that can cause them to return to their old age, such as trauma, changes in their surroundings or even starvation.
Also, lighthouse jellyfish reproduce by asexual reproduction.
After they return to the hydrozoa, they can differentiate and grow hundreds of individuals through cell division and transformation, all of which have exactly the same genetic material.
Theoretically, there is no limit to this process of rejuvenation, and an unlimited lifespan can be obtained by repeating the process over and over again.
Two, will lighthouse jellyfish die As described above, lighthouse jellyfish theoretically do not die because they revert back to their hydrozoan form when they reach adulthood, a process that is theoretically unlimited.
However, this is not to say that lighthouse jellyfish do not die.
Lighthouse jellyfish also have natural predators, and there are some marine organisms that will eat lighthouse jellyfish, in which case they will also die.