Q: Zebra mussels, an invasive species that cause over $1 billion in damages in the United States annually, are native to what sea(s)?
A: Black and Caspian Seas
Zebra Mussels are native to freshwaters of the Black and Caspian seas. Research indicates the mussels most likely first arrived in the U.S. through the Great Lakes in the 1980s via ballast water that was discharged by large ships from Europe.
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