Scientists analysed the DNA of world’s oldest land animal. What they found was staggering

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1. 3h ago

   World's Oldest Land Animal Genome Sequenced at Age 194

   Scientists have sequenced the genome of Jonathan, a 194-year-old giant tortoise residing on the remote South Atlantic island of St. Helena. Recognized as the world's oldest known land animal, Jonathan hatched around 1832 in the Seychelles. Researchers analyzed his DNA to uncover biological secrets behind his extreme longevity, identifying 287 unique gene variants associated with DNA repair and defenses against aging. Experts hope these genetic insights into his stable gene switches could eventually lead to human treatments and a better understanding of how to resist aging.

   Why it matters

   Jonathan has lived for nearly two centuries, making him a unique subject for aging research. Scientists study long-lived species to identify natural mechanisms that prevent cellular damage over vast spans of time. Understanding these genetic defenses offers a potential blueprint for human longevity therapies.

   What is confirmed

   • Jonathan is a 194-year-old giant tortoise and the world's oldest known land animal.
   • Jonathan hatched in about 1832 in the Seychelles and lives on the South Atlantic island of St. Helena.
   • The tortoise carries 287 unique gene variants involved in DNA repair and defenses against aging.
   • His genome reveals stable gene switches that may help resist aging.

   Still unconfirmed

   • Researchers hope to turn the genetic discoveries into human treatments for aging.

   What to watch next

   • Further laboratory analysis of the 287 unique gene variants
   • Potential translation of tortoise DNA repair mechanisms into human medical research models
   Sources used for this update (14)

   1. The New York Times — Jonathan the Giant Tortoise Is 194 Years Old. He Just Had His Genome Sequenced.
   2. Scientific American — The oldest known land animal is 194. How did he get so ancient?
   3. Phys.org — 194-year-old tortoise reveals stable gene switches that may help resist aging
   4. The Guardian — Jonathan the giant tortoise, 194, offers up insight into secrets of longevity
   5. BBC Wildlife Magazine — Scientists analysed the DNA of world’s oldest land animal. What they found was staggering
   6. Reuters — A 194-year-old tortoise, world's oldest land animal, may hold clues to longer life
   7. Popular Science — Jonathan the tortoise is 194 years old and thriving. His genes help explain why.
   8. The Telegraph — DNA from world’s oldest tortoise may hold key to human ageing
   9. CNN — The secret to longer life? Scientists believe a 194-year-old tortoise could unlock clues
   10. Yale E360 — Jonathan, a 192-Year-Old Giant Tortoise, Holds Insights for Aging Well
   11. www.cnn.com — Jonathan the 194-year-old tortoise could help humans live longer
   12. www.yahoo.com — DNA of World’s Oldest Tortoise, 194, Reveals Surprising ...
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