Photo of world's oldest living animal?

This photo of a tortoise was taken around 1900 on the island of St. Helena in the South Atlantic Ocean. The tortoise, named Jonathan, still lives there today. He may be the world's oldest living animal. From The Telegraph:
 Telegraph Multimedia Archive 01125 Oldest Animal 1125975FA spokesman for the island's tourist board said Jonathan is owned by the St Helena government and lives in the specially built plantation on the governor's land.

He said: "Jonathan is the sole survivor of three tortoises that arrived on St Helena Island in 1882.

"He was already mature when he arrived and was at least 50-years-old.

"Therefore his minimum age is 176-years-old. He is the oldest inhabitant on St Helena and is claimed to be the oldest living tortoise in the world.
"World's oldest living animal discovered after he is pictured in 1900 photograph"