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Crazy worms, also known as Asian jumping worms, have spread to multiple regions in the U.S. Scientists worry about the worms’ environmental impacts because the invasive species strips topsoil of nutrients that other plants, animals and fungi need to survive. (Susan Day/UW-Madison Arboregum)
Photo by: Susan Day
Crazy worms, also known as Asian jumping worms, have spread to multiple regions in the U.S. Scientists worry about the worms’ environmental impacts because the invasive species strips topsoil of nutrients that other plants, animals and fungi need to survive. (Susan Day/UW-Madison Arboregum)

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