Slug crawling on wetlands muddy tidal flat, tentacle of shell-less terrestrial gastropod mollusc slug and mud crab spotted at Gaomei wetlands preservation area at Taichung city, Taiwan

gastropod mollusc mud wildlife slug crab soil slimy muddy sand wetland habitat species swampy animal crawl fauna crustacean invertebrate environment terrestrial marsh close up ecosystem tentacle nature swamp sea coast mineral mangrove slow aquatic macro flat natural wild outdoors gaomei pristine untouched feelers move fiddler tidal daytime no people taichung sipping