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Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2] [3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
Some jellyfish species, including Turritopsis dohrnii, Laodicea undulata, [50] and Aurelia sp.1, [51] are able to revert to the polyp stage even after reproducing (so-called reversible life cycle), rather than dying as in other jellyfish. Consequently, these species are considered biologically immortal and have no maximum lifespan. [52]
Embryonic stem cells and germ cells have also been described as immortal. [8] [9] Immortal cell lines of cancer cells can be created by induction of oncogenes or loss of tumor suppressor genes. One way to induce immortality is through viral-mediated induction of the large T-antigen, [10] commonly introduced through simian virus 40 (SV-40). [11]
The aptly named immortal jellyfish (Turritopsis dohrnii) is one such animal — and, in a surprise discovery now published in Proceedings of the National Academy of Sciences, scientists have added ...
"We've known about this species being able to do a little evolutionary trickery for maybe 15-20 years," said Monty Graham, a jellyfish expert and director of the Florida Institute of Oceanography ...
For centuries humans have searched far and wide for a way to live forever. Meanwhile, a species of jellyfish may have already figured out. The Turritopsis dohrnii is believed to be the only ...
Turritopsis dohrnii (Weismann, 1883) also known as the "Benjamin Button jellyfish", or the "immortal jellyfish". It can reverse its life cycle and transform itself back to a polyp. [3] Turritopsis fascicularis Fraser, 1943; Turritopsis lata Lendenfeld, 1884; Turritopsis minor (Nutting, 1905)
Turritopsis nutricula is a small hydrozoan that once reaching adulthood, can transfer its cells back to childhood. This adaptive trait likely evolved in order to extend the life of the individual.