The invasive quagga mussels found in an Idaho river in 2023 were microscopic. But to state officials, their presence was enormous. Though the mussels couldn’t grow much larger than a nickel, state ...

BOISE, Idaho — They are smaller than a finger nail, but have caused hundreds of millions of dollars in damage across the country. Idaho is continuing its unprecedented battle to stop quagga mussels ...

Idaho state officials this fall plan to continue treatments to eradicate quagga mussels, an invasive species threatening the state’s ecosystem, after they found larvae remaining in the Snake River, ...

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