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Where did the zebra mussels originally come from?

Where did the zebra mussels originally come from?-example-1
User Ssh Quack
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Answer:

Zebra mussels are an invasive, fingernail-sized mollusk that is native to freshwaters in Eurasia. Their name comes from the dark, zig-zagged stripes on each shell. Zebra mussels probably arrived in the Great Lakes in the 1980s via ballast water that was discharged by large ships from Europe.

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User Fankibiber
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