a crayfish is resting on a mossy rock by the river.

animal antenna aquatic are australia body bottom cherax claw close conservation crab crawfish crayfish crustacean ecology edible eye food freedom fresh freshwater has invertebrate lake life lobster macro mossy muddy name natural nature pet prawn protection quadricarinatus raw red reserve resting ripple river rock sand scientific seafood shell shore stream tail this two underwater water wild wilderness wildlife