Pete Oxford / Galapagos Giant Tortoise (Geochelone elephantophus vandenburghi) near fumaroles, Alcedo Volcano crater floor, Isabela Island, Galapagos Islands

Tim Laman / Galapagos giant tortoise (Geochelone nigra / Geochelone elephantopus) feeding (captive). Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands.

MORLEY READ / "Lonesome George", the last Galapagos Tortoise {Geochelone elephantopus} from Pinta Island, Galapagos

Pete Oxford / Giant tortoise {Geochelone elephantopus}, Alcedo Volcano, Isabela Island, Galapagos

Pete Oxford / Giant Tortoise (Geochelone elephantopus) and tourists in the Galapagos Islands

Pete Oxford / D - Galapagos Giant tortoise portrait - Dome form {Geochelone elephantopus} retreating into shell. Darwin Research Station. Santa Cruz Is. Galapagos Islands, Ecuador. South America

Pete Oxford / Galapagos Giant tortoise close up portrait - dome form {Geochelone elephantopus} retreating into shell. Galapagos Is

Pete Oxford / Galapagos Giant tortoise portrait {Geochelone elephantopus} Galapagos Is

Pete Oxford / Giant tortoise {Geochelone elephantopus} Galapagos Islands, Ecuador Charles Darwin Research Stn

Adam White / Giant tortoise {Geochelone elephantopus} wave breaking on back, Aldabra, Seychelles

Cheryl-Samantha Owen / Aldabra giant tortoise (Geochelone gigantea) walking along the sea shore, Aldabra Atoll, Seychelles, March

Pete Oxford / Galapagos Giant Tortoise (Geochelone elephantophus vandenburghi) eating grass, Alcedo Volcano crater floor, Isabela Island, Galapagos Islands, Ecuador, South America