Medusa or adult jellyfish typically live for a few months, depending on the species, although some species can live for 2-3 years in captivity. The sexually mature medusa stage which reproduces by the spawning and fertilization of eggs with sperm, while the sexually immature polyps reproduce by budding. It belongs to the Phylum Cnidaria.Jellyfish can exist in polyp form, as medusa, or can alternate between both. • The immortal jellyfish (scientific name – Turritopsis nutricula) was discovered in 1883 in the Mediterranean Sea. Immortal jellyfish defy death by producing genetically identical copies of themselves. They can undergo this cycle repeatedly. One jellyfish species is almost immortal. Various unicellular and multicellular species, including some vertebrates, achieve this state either throughout their existence or after living long enough. A jellyfish’s lifespan usually ranges from somewhere between a few hours for the smallest species to several months and rarely to a few years for the bigger species. But forcefully extending the human lifespan by even one decade would present difficult social realities, and we have little insight into what this would mean for us. The immortal jellyfish (Turritopsis dohrnii) ... a single immortal jellyfish has the potential to create an exponential swarm of clones of itself during its extended lifespan. Did you ever wonder if you could go back to being a child? Turritopsis dohrnii is a species of jellyfish that has the unofficial name immortal jellyfish… Immortal jellyfish, however, undergo a transformation in which they return to a stage of sexual immaturity after reproducing, only to mature and reproduce again, then return to sexual immaturity, and so on. Unfortunately, the average lifespan of humans on earth is only 79 years. The bad news is, you have to be a tiny floating blob of jelly to do so! The immortal jellyfish accomplished this through “transdifferentiation,” which changes the differentiated state of cells and turns them into new kind of cell. One of the first researchers to study it, Ferdinando Boero, looks at whether this amazing organism really can live forever. They are believed to have an infinity potential lifespan. However, if a Turritopsis dohrnii gets physically harmed or starts to starve, it can transform back into … It is one of only a few known instances of creatures which can revert back to its premature state when exposed to stress or injury. • The unique regeneration process of the mature immortal jellyfish … Image credit: NOAA Okeanos Explorer Program/wikimedia. The story of the immortal jellyfish starts in 1988. Jellyfish. Polyps can live and reproduce asexually for several years, or even decades. This species of jellyfish can! Found in the waters of Japan and Mediterranean sea, the immortal jellyfish is the only animal which can go back to being sexually immature after reaching maturity. This species of immortal jellyfish is called turritopsis nutricula and it has the amazing ability to revert itself back to a state before it’s sexually mature when it is injured, sick, or threatened by predators. Recently researchers have found that the immortal jellyfish living off Japan, Panama, Florida, Spain … Like all jellyfish, Turritopsis dohrnii begins life as a larva, called a planula, which develops from a fertilized egg.A planula swims at first, then settles on the sea floor and grows into a cylindrical colony of polyps. A marine biology student had collected a minuscule bell-shaped medusa with a smattering of thin tentacles and a pinkish chandelier of gonads from shallow water near Genoa on Italy’s northwest coast. The jellyfish has skipped to an earlier life stage to begin again. ... Their average lifespan is between 272 and 512 years. Red sea urchins normally have a lifespan over 30 years, but radiocarbon dating has identified some over two centuries in age. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle. ... Immortal jellyfish. On “Feeding Our Bodies,” a similar program, Kubota addressed the camera: “Among the animals, the immortal jellyfish is the most splendid.” How does the only 4-5 mm long Turritopsis nutricula (let’s call it T’nut) manage to beat the system? ANSWER: It of course depends on the species of jellyfish. The nutrition of immortal jellyfish consists of plankton, fish … Turritopsis dohrnii, the immortal jellyfish, is a species of small, biologically immortal jellyfish found in the Mediterranean Sea and in the waters of Japan. Immortal Jellyfish Reproduction and Lifespan. The immortal jellyfish. 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