Flamingos feed on brine shrimp in shallow lagoons, while marine iguanas eat algae that adhere to rocks on the coast and underwater. Also found in this area are succulents, such as purslane, which are food for land iguanas and insects. Other marine life that thrives in this area includes mollusks, crustaceans and invertebrates. Floreana, North Seymour and South Plaza are examples of islands that have a prominent coastline.