Sally lightfoot crab (Grapsus grapsus) in the littoral of the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

grapus grapsus galapagos islands ecuador intertidal zone marine life ocean waves rocky shore biodiversity vibrant colors crustacean coastal habitat animal behavior sea life red crab nature wildlife shore ecology ecuadorian coast marine ecosystem galapagos archipelago aquatic environment tropical climate coastal rocks invertebrate natural habitat coastal wildlife rocky coast ecological balance ocean environment crab species marine biodiversity surf tidal zone coastal ecology coastal landscapes ocean conservation animal habitat conservation efforts nature conservation endemic species marine organisms coastal ecosystems natural beauty earth's diversity crab behavior