bug dragon dragonfly everglades exoskeleton Florida fly insect swamp wing wings alien armor carcass dead died isolated macro Remains shed shell shield skeleton skin sveres armour carapace cuticle house marine mollusc ocean peltidium protection sea seashell spiral swirl twist animals background boil boiled crab crustaceans food freshwater nature red saavem seafood texture animal colorful grass grass hopper grasshopper grillo herbivore hop jump locust organic species avian dragon fly insects wetland wetlands aquatic closeup coast creature Crustacean Hermit Crab hide scavengers sea snail shell shore social active decapod gregarious India nocturnal crabs pincers Sand bubbler crabs sand-bubblers Scopimera