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

galapagos marine iguana amblyrhynchus cristatus swimming water endemic wildlife aquatic ecuador galapagos islands unesco nature reptiles ecology south america biodiversity adaptation environment conservation unique species coastal marine life habitat animal behavior iguana cold blooded foraging ecosystems waves underwater natural beauty flora fauna shore tropical vibrant amphibious sunbathing swimming behavior natural habitat geology volcanic islands endangered species reptilian stunning intricate details indigenous species gazing sunlit waters engaging