two field crabs are foraging on a moss-covered rock by the river.

animal are background beach beautiful black brown chesapeake claw closeup coast color colorful convexa crab crabs crustacean delicacy ecuador eyes fiddler field food foraging galapagos gecarcinucidae ghost grapsus has healthy life luxury macro meat mosscovered mud name natural nature ocean orange outdoor parathelphusa red river rock sand sawah scientific sea seafood shellfish small steamed this tropical two water wild wildlife yellow yuyu