Jonathan (hatched , − years old) is a Seychelles giant tortoise ("Aldabrachelys gigantea hololissa"), a subspecies of the Aldabra giant tortoise ("Aldabrachelys gigantea"). He is the oldest known living terrestrial animal in the world. Jonathan lives on the island of Saint Helena, a British Overseas Territory in the South Atlantic Ocean. A photograph taken in 1886 featuring Jonathan exists.