Northern Hog Sucker

The northern hogsucker (Hypentelium nigricans) is a freshwater ray-finned fish belonging to the family Catostomidae, the suckers. It is native to the United States and Canada where it is found in streams and rivers. It prefers clear, fast-flowing water, where it can forage on the riverbed for crustaceans, mollusks, aquatic insects, algae and detritus. It turns over small pebbles and scrapes materials off rocks and sucks up the particles, and other species of fish sometimes station...