Amblyrhynchus is a genus of marine iguanas found exclusively on the Galápagos Islands. These unique reptiles are well-adapted to their environment, with a diet primarily consisting of algae. They are known for their ability to swim and dive underwater, using their strong limbs and flattened tails to navigate through the ocean. These iguanas can grow up to 1.5 meters in length and have a distinctive appearance, featuring dark, scaly skin that helps them absorb heat from the sun. Amblyrhynchus plays a crucial role in the ecosystem by helping to control algae growth on rocky shorelines.