A species of giant tortoise believed to have been extinct for more than 100 years has been discovered on the Galapagos island of Fernandina. The last known time a Fernandina Giant Tortoise was seen alive was 1906. An adult female believed to be more than a century old was seen alive on Sunday during a joint expedition by the Galapagos National Park and the Galapagos Conservancy, the Ecuadorian government announced.