Giant Tortoise Jonathan Is 194: How the World’s Oldest Land Animal Could Help Unlock the Secrets of Longevity

Jonathan the giant tortoise, famed for his exceptional longevity, was named one of Guinness World Records’ “ICONS” this year at age 194 — and he might just hold the same esteem in scientists’ eyes. The oldest-living land animal, Jonathan is believed to have hatched in 1832, making him a contemporary of Charles Darwin, Emily Dickinson, […]