AZ Animals on MSN
Zebra mussels: The tiny invaders costing the US billions
When people think about invasive species, they often conjure images of large feral pigs or Burmese pythons in the Florida ...
Add Yahoo as a preferred source to see more of our stories on Google. Last August, Lauren Isbell dove around Mott Island Dock at Isle Royale National Park, plucking invasive zebra mussels from the ...
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