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

grapus grapsus galapagos intertidal zone ocean waves rocky shoreline crustacean marine life biodiversity nature wildlife ecuador unesco habitat ecosystem bright colors agility shore coastline invertebrate galapagos islands crustaceans coastal marine environment tropical animal behavior ecology scenic fauna environment shore crabs rocky habitat sea south america surf tidal pool animal nature conservation vibrant ecological diversity marine biodiversity attractive habitat conservation