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The northern sea robin (Prionotus carolinus) is named for its expanded pectoral fins that resemble bird wings. The first three fin rays separate from these wings during early sea robin development and can be used as 91�������לlegs91�������ם to walk along the ocean floor. These 91�������לlegs91�������ם have sensory capabilities that allow the fish to find food.

Sea robins have a distinctive 91�������לdrumming muscle91�������ם that makes sounds by beating against its swim bladder. They often produce an audible croak like a frog when held out of water91�������הthis is where their other common name (the gurnard) comes from.