Biological immortality
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Biological immortality is a state in which the rate of mortality from senescence is stable or decreasing, thus decoupling it from chronological age. Various unicellular and multicellular species, incl
Hydra
Polycelis felina, a freshwater planarian
Turritopsis dohrnii
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Turritopsis dohrnii, commonly known as the immortal jellyfish, is a species of small, biologically immortal Medusozoa found worldwide in temperate to tropic waters. It is one of the few known cases of
Biological immortality
…argued that they should have started to undergo senescence and death of old age within four years, if they did have the property of senescence at all. Turritopsis dohrnii and Turritopsis nutricula, are small (5 millimeters (0.20 in)) species of jellyfish that use transdifferentiation to replenish cells after sexual…
Turritopsis dohrnii