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 ...

Giant tortoises slowly walk with tourists on Changuu Island, Zanzibar, Tanzania, on August 20, 2018. Photo: Mahmut Serdar Alakus/Anadolu Agency/Getty Images/VCG ...

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.

28.08.2018 Giant tortoises on Changuu Island Various shots of giant tortoises on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania on August 20, 2018.