Triphysa dohrnii was created in 1850.
Triphysa nervosa was created in 1866.
Triphysa phryne was created in 1771.
Eteobalea dohrnii was created in 1847.
Why would you ask that? Nobody knows unless they have no life. SO jellyfishy jellyfishy jellyfishyjellyfishy jellyfishy jellyfishyjellyfishy jellyfishy jellyfishyjellyfishy jellyfishy jellyfishyjellyfishy jellyfishy jellyfishy jellyfishy jellyfishy jellyfishy jellyfishy jellyfishy jellyfishy
The lifespan of a jellyfish varies depending on the species, but most jellyfish live for only a few months to a year. Some species, such as the Turritopsis dohrnii jellyfish, are capable of reverting back to their polyp stage and essentially have the potential to be immortal.
Turritopsis dohrnii, is a hydrozoan commonly called "immortal jellyfish." These jellyfish have the ability to revert back to the polyp stage if they are under environmental stress. Their cells do this by changing what type of cells they are, called transdifferentiation.
Creatures that defy nature often possess extraordinary adaptations or abilities that seem to contradict natural laws. For example, the immortal jellyfish (Turritopsis dohrnii) can revert to its juvenile form after reaching maturity, effectively allowing it to bypass death. Similarly, certain extremophiles, like tardigrades, can survive extreme conditions, including extreme temperatures and radiation. These organisms challenge our understanding of biology and the limits of life.
Immortal people, in the sense of living indefinitely without aging or dying, are not real. While certain organisms, like the Turritopsis dohrnii jellyfish, exhibit biological mechanisms that allow them to revert to earlier life stages, humans cannot achieve true immortality. Advances in medicine and technology may extend lifespan and improve health, but the concept of immortality remains a topic of science fiction and philosophical debate rather than scientific reality.
Some jellyfish have the unique ability to revert to earlier life stages, effectively allowing them to avoid death under certain conditions. For example, the Turritopsis dohrnii, often referred to as the "immortal jellyfish," can transform from a mature medusa back into its polyp stage. This process can theoretically repeat indefinitely, enabling it to evade aging and death. However, this doesn't mean they can "come back to life" in the traditional sense; rather, they undergo a form of biological rejuvenation.
The only known animal that does not die from old age is the Turritopsis dohrnii, commonly known as the "immortal jellyfish." This remarkable creature has the ability to revert to its juvenile form after reaching maturity, effectively allowing it to bypass the aging process. When faced with environmental stress or physical damage, it can transform its cells back into a polyp stage, starting its life cycle anew. This unique biological process enables it to potentially live indefinitely under the right conditions.
All animals die..__________No, there is two species of jellyfish, Turritopsis Dohrnii, and Turritopsis Nutricula that reaches a point where it reverts to an early stage of development and then continues as if it is young. It is not clear if this process can continue without end for an individual jellyfish, but the possibility cannot be categorically rejected. To be fair it has to be pointed out that most of these jellyfish live and die the old fashioned way. But if they are under stress for some reason, the reverting process can kick in.
Most (98%) will die and almost all will die if the change is made quickly. Salt water fish actually drink the salt water, excrete the salt, and are left with unsalted water in their body; they do this because the sea water, through the process of osmosis, draws out water from the body. When they are placed in fresh water, they continue to drink the water, but since the water is now less saline that the fish, water is no longer being drawn out, and in most cases (especially if the transfer was too quick), will start absorbing water, hence they will typically die.