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Jonathan the giant tortoise, 194, offers up insight into secrets of longevity

The Guardian UK Wednesday 07 October 2026, 18:00 UTC By Ian Sample Science editor 1 min read
Key Points

DNA analysis of oldest living land animal reveal patterns on genes that appear to protect functioning of mitochondriaThe ancient quest to extend human lifespan has received a boost after scientists analysed the genetic code of the world’s oldest living land animal, a giant tortoise called Jonathan. The tortoise, which lives in the grounds of Plantation House, the official residence of the governor of Saint Helena in the South Atlantic, is believed to be 194 years old, making him a...

DNA analysis of oldest living land animal reveal patterns on genes that appear to protect functioning of mitochondria

The ancient quest to extend human lifespan has received a boost after scientists analysed the genetic code of the world’s oldest living land animal, a giant tortoise called Jonathan.

The tortoise, which lives in the grounds of Plantation House, the official residence of the governor of Saint Helena in the South Atlantic, is believed to be 194 years old, making him a contemporary of Queen Victoria and Charles Darwin.

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Jonathan (PERSON) Plantation House (LOCATION) Saint Helena (LOCATION) the South Atlantic (LOCATION) Queen Victoria (PERSON) Charles Darwin (PERSON)
Originally published by The Guardian UK Read original →

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