stingray leopoldi on a sandy bottom among snags fish, potamotrygon leopoldi. marine life

air animal animals aquarium aquatic blue bottom bright camouflage cheerful clean color colorful coral corals dangerous depth dive diving ecology egypt eyes filter fins fish flat gills jungle leopoldi life marine mouth nature ocean paralysis pin poisonous potamotrygon predator prick protection red reef river sand sandy scuba sea shellfish snags spots stingray subtropics tail transparent travel tropical tropics turtles underwater water wildlife world