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Faster flow makes invertebrates grow

Two macroinvertebrates float onto a log ... no, it's not the start of a bad biology joke! Local professors and students are studying how the velocity of flowing water in the Wisconsin River affects how many macroinvertebrates made submerged wood structures their home. Turns out, the faster the water flows, the higher the abundance of these little critters. The wood had five times more invertebrates than the stream bed as well.

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