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The 68 species of suckers are found in freshwater rivers in North America, China, and northeastern Siberia. They can grow up to 1 meter long, but are usually less than 60 centimeters long. They have thick, fleshy lips that help them to attach themselves to rocks in the bottoms of fast-flowing rivers. They eat bottom-dwelling animals like worms, crustaceans, insects, and small fishes.

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. "Catostomidae" (On-line), Animal Diversity Web. Accessed February 27, 2024 at

BioKIDS is sponsored in part by the Interagency Education Research Initiative. It is a partnership of the University of Michigan School of Education, University of Michigan Museum of Zoology, and the Detroit Public Schools. This material is based upon work supported by the National Science Foundation under Grant DRL-0628151.
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