860-292474 - Giant Seychelles tortoise (Aldabrachelys gigantea), Turtle island, Prison island, Zanzibar. This island was used as a prison for slaves, and four giant Seychelles tortoises were introduced. Today, they are protected from poachers, and the oldest are between 170 and 200 years old.

1116-52865 - Aldabra giant tortoise (Aldabrachelys gigantea) crosses lawn near trees, Segera, Laikipia, Kenya

1112-8388 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8387 - Preserved Galapagos giant tortoise (Chelonoidis spp), known as Lonesome George, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8386 - Captive Galapagos giant tortoise (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8385 - Close-up of foot of captive Galapagos giant tortoise (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8381 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8378 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8377 - Wild Galapagos giant tortoises (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8375 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8368 - Captive Galapagos giant tortoise (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8369 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8367 - Wild Galapagos giant tortoises (Chelonoidis spp), found in Rancho Manzanillo, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8357 - Captive Galapagos giant tortoises (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8354 - Captive Galapagos giant tortoises (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8352 - Captive Galapagos giant tortoises (Chelonoidis spp), Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

1112-8348 - Wild Galapagos giant tortoise (Chelonoidis spp), found in Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

759-12887 - Galapagos Giant Tortoise, Chelonoidis nigra, Santa Cruz Island, Galapagos, Ecuador

759-12886 - Galapagos Giant Tortoise, Chelonoidis nigra, Santa Cruz Island, Galapagos, Ecuador

759-12885 - Galapagos Giant Tortoise, Chelonoidis nigra, Santa Cruz Island, Galapagos, Ecuador

759-12884 - Galapagos Giant Tortoise, Chelonoidis nigra, Santa Cruz Island, Galapagos, Ecuador

759-12883 - Galapagos Giant Tortoise, Chelonoidis nigra, Santa Cruz Island, Galapagos, Ecuador

1179-6119 - Head of a giant tortoise, Prison Island, Zanzibar, Tanzania, East Africa, Africa

860-291149 - Portrait of giant tortoises (Chelonoidis elephantopus). Galapagos Islands. Pacific Ocean. Ecuador.

860-291148 - Two giant turtles (Chelonoidis elephantopus) mating. Galapagos Islands. Pacific Ocean. Ecuador.

860-290945 - Healers vermifuge a Seychelles Giant Tortoise

832-395084 - Aldabra giant tortoise (Geochelone gigantea), Aldabra Giant Tortoise, Granite Island, La Digue, Seychelles, La Digue, Seychelles, Africa

1112-6299 - A Galapagos giant tortoise (Chelonoidis spp), Galapagos National Park, San Cristobal Island, Galapagos, Ecuador, South America

1112-6298 - A Galapagos giant tortoise (Chelonoidis spp) in Urbina Bay, Isabela Island, Galapagos, Ecuador, South America

1112-6297 - A Galapagos giant tortoise (Chelonoidis spp) in Urbina Bay, Isabela Island, Galapagos, Ecuador, South America

1116-51733 - Galapagos giant tortoise (Chelonoidis nigra) lumbers slowly across a long, straight dirt road that stretches off to the horizon. Beyond the grass verge, there is dense forest on either side; Galapagos Islands, Ecuador

1116-51734 - Galapagos giant tortoise (Chelonoidis nigra) lumbers slowly across a long, straight dirt road that stretches off to the horizon. Beyond the grass verge, there is dense forest on either side; Galapagos Islands, Ecuador

1349-1384 - Smooth-Billed Ani & Giant Tortoise

1320-74 - Giant Tortoise feeding on grass, Giant Tortoise Reserve, Santa Cruz, Galapagos, Ecuador, South America

1320-73 - Giant Tortoise with Yellow Darwin Finch on its shell, Giant Tortoise Reserve, Santa Cruz, Galapagos, Ecuador, South America

1320-4 - Galapagos Finch on Giant Tortoise shell, Ecuador, South America

1116-44892 - Galapagos Giant Tortoise (Chelonoidis Nigra) Chewing Grass In Field, Galapagos Island, Ecuador

1116-44889 - Galapagos Giant Tortoise (Chelonoidis Nigra) With Lizard On It's Shell, Galapagos Islands, Ecuador

1116-44852 - Front Of Galapagos Giant Tortoise (Geochelone Nigrita) In Profile, Galapagos Islands, Ecuador

1116-44891 - Galapagos Giant Tortoise (Chelonoidis Nigra) Walking On Gravel Path, Galapagos Islands, Ecuador

1116-44836 - Two Galapagos Giant Tortoises (Geochelone) Biting Cactus Leaves, Galapagos Islands, Ecuador

1116-44849 - Galapagos Giant Tortoise (Geochelone Hoodensis) In Artificial Concrete Pool, Galapagos Islands, Ecuador

1116-44901 - Close Up Of Galapagos Giant Tortoise (Chelonoidis Nigra) In Field, Galapagos Islands, Ecuador

1116-44890 - Galapagos Giant Tortoise (Chelonoidis Nigra) Walking Through Sunlit Woods, Galapagos Islands, Ecuador

1116-44850 - Galapagos Giant Tortoise (Geochelone Hoodensis) In Artificial Concrete Pool, Galapagos Islands, Ecuador

1116-44848 - Galapagos Giant Tortoise (Geochelone Nigrita) In Muddy Forest Clearing, Galapagos Islands, Ecuador

1116-44851 - Galapagos Giant Tortoise (Geochelone Nigrita) Eating Grass In Pool, Galapagos Islands, Ecuador

1314-61 - Happy tourist woman touches curious Aldabra Giant Tortoise (Aldabrachelys gigantea) which stretches wrinkled neck, Turtle Sanctuary, Curieuse, Nature Reserve, Seychelles, Indian Ocean, Africa

1245-1287 - Giant Tortoise at Charles Darwin Research Station, Puerto Ayora, Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1245-1275 - Giant Tortoise, El Chato, Highlands of Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1245-1274 - Giant Tortoise, El Chato, Highlands of Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1116-41400 - A giant Galapagos tortoise (Geochelone nigra) beds down for the night below a tree house at the Tortoise Farm on the island of Santa Cruz in the Galapagos Archipelago, Santa Cruz Island, Galapagos Islands, Ecuador

1116-41401 - Giant tortoise (Chelonoidis nigra) are the largest living species of tortoise that can grow up to 880 pounds and reach more than 6 feet in length, Santa Cruz Island, Galapagos Islands, Ecuador

832-379247 - Aldabra Giant Tortoise (Aldabrachelys gigantea), adult, feeding, Seychelles, Africa

832-379248 - Aldabra Giant Tortoise (Aldabrachelys gigantea), adult, moving, Seychelles, Africa

1112-3474 - Wild Galapagos giant tortoise (Geochelone elephantopus), in Urbina Bay, Isabela Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1112-3476 - Wild Galapagos giant tortoise (Geochelone elephantopus), face detail, Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1112-3475 - Wild Galapagos giant tortoise (Geochelone elephantopus), with tourists on Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1112-3449 - Wild Galapagos giant tortoise (Geochelone elephantopus), Santa Cruz Island, Galapagos, Ecuador, South America

1112-3450 - Wild Galapagos giant tortoise (Geochelone elephantopus) with cow on Santa Cruz Island, Galapagos, Ecuador, South America

1112-3451 - Wild Galapagos giant tortoise (Geochelone elephantopus) in mud pit on Santa Cruz Island, Galapagos, Ecuador, South America

796-2335 - Aldabra giant Seychelles tortoise (Aldabrachelys gigantea), Anse Takamaka, Mahe, Republic of Seychelles, Indian Ocean, Africa

796-2342 - Giant Aldabra Seychelles tortoise (Aldabrachelys gigantea), Union Estate Park, La Digue, Republic of Seychelles, Indian Ocean, Africa

796-2341 - Giant Aldabra Seychelles tortoise (Aldabrachelys gigantea), Union Estate Park, La Digue, Republic of Seychelles, Indian Ocean, Africa

796-2334 - Aldabra giant Seychelles tortoise (Aldabrachelys gigantea), Anse Takamaka, Mahe, Republic of Seychelles, Indian Ocean, Africa

1172-2379 - Seychelles giant tortoise, (Aldabrachelys gigantea), adult feeding portrait, Seychelles, Africa

860-284248 - Galapagos giant tortoises, Santa Cruz Galapagos

832-367915 - Malaysian giant turtle (Orlitia borneensis), found in Asia, captive, Belgium, Europe

832-373708 - Galápagos tortoise or Galápagos giant tortoise (Geochelone nigra), adult feeding, Galapagos Islands, Pacific Ocean

832-373705 - Galápagos tortoise or Galápagos giant tortoise (Geochelone nigra), Galapagos Islands, Pacific Ocean

832-373706 - Galápagos tortoise or Galápagos giant tortoise (Geochelone nigra), adult, Galapagos Islands, Pacific Ocean

832-373729 - Aldabra giant tortoise (Testudo gigantea, Geochelone gigantea), foraging

832-373730 - Aldabra giant tortoise (Testudo gigantea, Geochelone gigantea), foraging

1131-354 - Galapagos Giant Tortoise (Geochelone elephantophus vandenburgi), Bahia Urvina, Isabela Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

1112-1565 - Wild Galapagos giant tortoise (Chelonoidis nigra) in Urbina Bay, Isabela Island, Galapagos Islands, Ecuador, South America

1112-1567 - Captive Galapagos giant tortoise (Chelonoidis nigra) at the Charles Darwin Research Station on Santa Cruz Island, Galapagos Islands, Ecuador, South America

1112-1568 - Wild Galapagos giant tortoise (Chelonoidis nigra) feeding on passion fruit in the highlands on Santa Cruz Island, Galapagos Islands, Ecuador, South America

1112-1566 - Wild Galapagos giant tortoise (Chelonoidis nigra) in Urbina Bay, Isabela Island, Galapagos Islands, Ecuador, South America

1161-483 - Giant tortoise feeding on leaves on the Galapagos Islands

1161-531 - A giant tortoise feeding on leaves and a bird on the Galapagos Islands

1161-532 - The back foot of a giant tortoise on the Galapagos Islands

1161-533 - Giant tortoise feeding on leaves on the Galapagos Islands

1161-489 - Giant tortoise feeding on leaves on the Galapagos Islands

1161-605 - Giant tortoise feeding on leaves on the Galapagos Islands

1161-530 - Giant tortoise feeding on leaves on the Galapagos Islands

869-704 - Galapagos tortoise giant tortoise giant tortoise

817-415878 - Guests from the Lindblad Expedition ship National Geographic Endeavour photograph a wild giant tortoise on Santa Cruz Island in the Galapagos Islands, Ecuador

1116-27932 - Ecuador, Galapagos Archipelago, Santa Cruz Island, Young boy photographing Galapagos Giant Tortoise (Geochelone elephantopus).

1116-28248 - Galapagos, Giant Tortoise (Geochelone Elephantopus),A young boy gets ready to snap a photo of a Galapagos giant tortoise.

857-42725 - Tourists converge around a captive giant tortoise housed at the Darwin Research Station on Santa Cruz Island, Galapagos.

1112-27 - Captive Galapagos giant tortoise (Geochelone elephantopus), Charles Darwin Research Station, Galapagos Islands, UNESCO World Heritge Site, Ecuador, South America

1112-28 - Wild Galapagos giant tortoise (Geochelone elephantopus), Santa Cruz Island, Galapagos Islands, UNESCO World Heritge Site, Ecuador, South America

979-3281 - Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-9483 - Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-9256 - Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-5772 - Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-3278 - Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-5765 - Captive Galapagos giant tortoise (Geochelone elephantopus) being fed at the Charles Darwin Research Station on Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-5777 - Wild Galapagos giant tortoise (Geochelone elephantopus) feeding on fallen passion fruit on the upslope grasslands of Santa Cruz Island in the Galapagos Island Archipelago, Ecuador

979-5787 - Wild Galapagos giant tortoise (Geochelone elephantopus) feeding on fallen passion fruit on the upslope grasslands of Santa Cruz Island in the Galapagos Island Archipelago, Ecuador