4. Lobsters

Lobsters exhibit remarkable longevity, with some individuals living up to 45 to 50 years in the wild. (en.wikipedia.org) This extended lifespan is attributed to the continuous expression of telomerase, an enzyme that repairs the protective caps at the ends of chromosomes, known as telomeres. (pubmed.ncbi.nlm.nih.gov) Unlike most organisms, lobsters maintain high telomerase activity throughout adulthood, effectively preventing the typical signs of aging. (smithsonianmag.com) However, they are not biologically immortal; they can die from natural causes, disease, or predation. (enviroliteracy.org)