Opsanus Tau is a species of fish commonly known as oyster toadfish. This bottom-dwelling fish can be found along the east coast of North America in shallow waters, particularly near oyster beds. The scientific name, opsanus tau, is derived from ancient Greek words meaning "appearance of an oyster" and "bull." This fish is also known by several other names, including oyster cracker, oyster catcher, and bar dog. These names reflect the fish's diet of oysters and other benthic organisms and its loud vocalizations, which resemble barking. Despite its unappetizing name, the oyster toadfish is an important part of the marine ecosystem and a sought-after catch for recreational anglers.