At 194, Jonathan the Giant Tortoise Knows About Aging, tell me about this news today

07-10-2026

Jonathan the giant tortoise, recognized as the world’s oldest known living land animal, is currently estimated to be 194 years old. Recent scientific updates reveal fascinating new insights into his longevity:

Popular Science

  • Genome Sequencing: Scientists have officially sequenced Jonathan’s genome to uncover the genetic mechanisms behind his extreme lifespan and anti-aging secrets.

    404 Media

  • Mitochondrial Resilience: Researchers found that while parts of his genome show signs of age-related entropy, his mitochondrial methylome appears remarkably youthful, looking biologically comparable to that of a much younger tortoise.

    404 Media

  • Current Life: He continues to reside on the island of Saint Helena at the governor’s residence, Plantation House, where he spends his days grazing and basking in the sun.

    404 Media

World’s oldest tortoise news coverage

This video provides a look at Jonathan’s daily life and highlights the news surrounding his historic age on the island of St. Helena.

World’s oldest tortoise, believed to be 193, is alive despite death rumorsAssociated Press ยท 129K views Open in World’s oldest tortoise, believed to be 193, is alive despite death rumors


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