Being able to constantly re-generate, never grow old or die. You would kind of be like wolverine from the X-men, the problem is, there is no animal in this world which can do what wolverine does.
However the immortal jelly fish or Turritopsis Dohrnii can, technically, live forever.
The Immortal Jelly Fish
(Turritopsis dohrnii)
The Turritopsis Dohrnii is the only creature which can technically live forever.
The key to immortality isn’t aging really slow but maturity. This jelly fish actually reverts back to its infant stage and then grows up again. Technically the Turritopsis Dohrnii can repeat this cycle an infinite amount of times.
Once in they are in adult stage they are only 4.5 mm big. These tiny blobs can turn themselves back into their juvenile polyp states.
If they are stressed, have no food around or just reproduced they can begin the transformation back into a polyp.
Their tentacles retract, body shrinks and the slowly sink to the ocean floor.
There they start their life cycle again.
In the lab, these little guys where observed to repeat this cycle over and over again. Technically, this means they can live forever.
To the right is an image of a polyp (not the Turritopsis Dohrnii).
However if they are eaten or infected by a diseases the jelly fish dies.
The only thing wrong with this method is, we don’t know if it is the same jelly fish.
Although they are identical copies of each other, their memories are probably not be shared.
