Cottid fish, commonly known as sculpins, belong to the family Cottidae. They are primarily found in cold-water environments, such as the North Atlantic and North Pacific oceans. These fish are characterized by their flattened bodies and large heads, which help them blend into rocky substrates. Cottids are often bottom-dwellers, feeding on small invertebrates and other organisms found on the ocean floor. There are over 200 species of cottid fish, varying in size and habitat preferences. Some species, like the Pacific sculpin, are popular among anglers for their unique appearance and fighting ability. Cottids play an important role in their ecosystems, serving as both predators and prey within their marine environments.