Tourists pose for a photo with a giant tortoise at Changuu Island in Zanzibar, Tanzania on August 10, 2019. The island hosts a population of Aldabra giant tortoises (Aldabrachelys gigantea), one ...

Tourists gather around a giant tortoise on Changuu Island, Zanzibar, Tanzania, on August 20, 2018. The island is also known as Prison Island. Photo: Mahmut Serdar Alakus/Anadolu Agency/Getty ...

Various shots of giant tortoises on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania on August 20, 2018. The island hosts a population of Aldabra giant tortoises (Aldabrachelys ...

Biology Giant Tortoises on Galápagos Island Aren’t What They Appear to Be More than 8,000 tortoises live on San Cristóbal. New DNA evidence suggests they’ve been mislabeled for a century.

A giant tortoise that was long believed extinct has been confirmed alive on the Galápagos islands in an extraordinary discovery.

A captive breeding program has seen the return of Galápagos giant tortoises to Española in the Galápagos Islands. As the tortoise population rebounds, the island ecosystem is in the process of ...

A presumed-extinct giant tortoise of the Galápagos Islands was found alive in 2019, and a new DNA study confirms the female tortoise is the same species as an animal collected over a century ago ...

Scientists at Yale University confirmed a giant female tortoise found in 2019 on Galapagos Island is of a species thought to have been long extinct.

A decades-long project to reintroduce Galapagos giant tortoises is changing the face of the island of Española.

Four tortoises were sent to Changuu Island as a gift from the British governor of the Seychelles in 1919. By the mid-1950s, there were more than 200 tortoises on the island.

A giant tortoise thought to have gone extinct 112 years ago has been rediscovered on the Galapagos' Fernandina Island.