cute sea crab on muddy hiding in water from other predators. crabs are omnivorous and good at hiding. waves of sea wash

crab mud brown stone bay coast kerkyra corfu greece arthropod barnacle beach biodiversity burrow camaraderie chitin crawl crustacean ecosystem fauna filter fiddler flotsam habitat invertebrate kelp marine molt ocean opportunistic plankton prey sand scavenge seaweed shell underwater