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From Wikipedia: The Northern Clingfish (Gobiesox maeandricus) is a species of saltwater fish. It is a member of the Gobiesocidae family of order Gobiesociformes. It is native to the Pacific coast of North America. It is commonly found in the intertidal zone clinging to the underside of rocks by small hairs akin to those on a gecko's feet on the basal portions of the pelvic and pectoral fins.