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

galapagos marine iguana amblyrhynchus cristatus espanola island endemic species volcanic rock adaptation ecuador south america wildlife close up claws texture habitat nature reptiles fauna biodiversity ecosystem colorful survival behavior conservation terrestrial aquatic tropical endemic flora geological features slow movement environment sunny day natural history coastal evolutionary species marine environment unique adaptations iguanas skin texture close range reptile adaptations ecological balance volcanic islands wildlife observation natural habitat animal behavior