Some people would consider the oyster toadfish (Opsanus tau) an ugly animal, with its flat head, wide, toadlike mouth, and thick lips. It also has tassels around its chin, prominent eyes, and two dorsal fins, the first of which is spiny. Its shape and coloration provide camouflage in its home under rocks and debris. This hardy fish tolerates dirty and trash-strewn water and is often found under jetties. It has been reared in captivity for use in experiments. It also does well in aquariums and is a popular game fish.