The white sucker is a freshwater fish native to North America, commonly found in rivers and lakes. It belongs to the family Catostomidae and is recognized for its elongated body and a distinctive sucker-like mouth, which it uses to feed on algae and detritus from the riverbed. Typically, white suckers can grow up to 24 inches long and have a grayish or brownish coloration with lighter underbellies. They are often seen in schools and play a role in the ecosystem by helping to maintain water quality through their feeding habits.