The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

amblyrhynchus cristatus espanola island endemic species basking iguanas sunbathing natural habitat eco tourism conservation area unique ecosystem reptiles wildlife genetic diversity island biodiversity south america cold blooded coastal vegetation herbivores adaptation ecosystem dynamics marine animals darwin's finches volcanic island ecological research outdoor adventure species protection animal behavior biodiversity hotspot endemic reptiles climate adaptation coastal ecosystem species survival food sources habitat conservation tropical climate natural conservation wildlife observation ecological significance travel destinations unique wildlife nature conservation galapagos islands