Explores the scientific concept of “negligible senescence,” describing how some organisms show little to no biological aging. It highlights examples such as the Greenland shark, Hydra vulgaris, and the Immortal Jellyfish, which display remarkable longevity. Other species mentioned include Galapagos tortoises, rougheye rockfish, and freshwater pearl mussels, along with the clarification that American lobsters are not truly immortal despite popular belief. The discussion also extends to long-lived plants like the Great Basin Bristlecone Pine and Quaking Aspen colonies, emphasizing that many organisms die mainly due to external causes rather than natural aging.
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