a tiny hermit crab in a shell on a rock

invertebrate wildlife pebble gravel animal nature insect rock sand sea aquatic biology clam claw closeup coast crab crawling crustacean design detail discovery exotic form hermit house island life little marine material mollusk mussel natural ocean old protection safety seashell shape shell shellfish shore soft-bodied summer travel tropical vacation walk water waterfront wild zoology beach coral creature fish seashore shoreline animal aquatic beach biology clam claw coast coral crab crawling crustacean design detail discovery exotic form home house invertebrate island life little marine material mollusk mussel natural nature ocean protection safety sand sea seashell shape shell shellfish shore soft-bodied summer travel tropical vacation walk water waterfront wild wildlife coral