Giant tortoise (Geochelone nigra) at the Galapaguera de Cerro Colorado, tortoise breeding center, Isla San Cristobal (San Cristobal Island), Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

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

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

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

Portrait of Galapagos Giant Tortoise (Geochelone elephantopus) in the Charles Darwin Station in Puerto Ayora, Insel Santa Cruz, Galapagos Inseln, Galapagos Islands, Ecuador, South America

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

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

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

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

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

Galapagos giant tortoises, Santa Cruz Galapagos