This species of clam is known for its remarkable longevity and can live for several centuries. The oldest known ocean quahog was estimated to be around 507 years old.
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These large sharks are believed to have a lifespan of several hundred years. Some individuals have been estimated to be over 400 years old.
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Greenland Shark (Somniosus microcephalus)
Tortoises (Various species)
Giant tortoises, such as the Galapagos tortoise and the Aldabra tortoise, are known for their longevity. They can live well over 100 years.
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Hydra (Hydra vulgaris)
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While they are not immortal, they have impressive regenerative abilities.
Immortal Jellyfish (Turritopsis dohrnii)
This species of jellyfish has a unique ability to revert back to its earlier life stage after reaching maturity, effectively restarting its life cycle.