Wild Galapagos giant tortoise (Geochelone elephantopus) feeding on the upslope grasslands of Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

geochelone elephantopus feeding grasslands wild biodiversity ecuador south america nature wildlife conservation ecosystem reptiles tortoise habitat flora fauna animal behavior natural history endangered species ecological balance terrestrial habitat slow moving herbivore galapagos islands outdoor thermal regulation shell climate native species habitat preservation tortoise conservation terrestrial ecosystem green vegetation foraging animal feeding biodiversity hotspot unique fauna peaceful environment ecological significance wildlife observation natural habitat lush greenery tortoise species animal adaptation terrestrial reptiles wildlife sanctuary natural wonders