Genetic analysis of the world's oldest land animal reveals secret of living 194 years

Genetic analysis of the world’s oldest land animal reveals secret of living 194 years Jacqueline Garget Wed, 10/07/2026 - 19:00 In a study published today in the journal Science Advances, scientists have pinpointed 287 unique gene variants in this remarkably old giant tortoise that reduce the usual effects of ageing. These control key processes in the body including repair of DNA damage, reducing inflammation, regulating insulin, and suppressing cancer. Jonathan, an Aldabra giant tortoise ( Aldabrachelys gigantea) , is estimated to be 194 years old.