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7 points

Lampreys are the greatest explorers among saltwater fish. They’ve mapped most of deepest darkest Greatlakesica, but most don’t make it back out to report their findings.

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2 points

How do biologists determine that the lampreys migrated from the ocean versus being hatched/born in the Great Lakes?

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4 points

Accent. You can take the fish out of the ocean but you can’t take the ocean out of the fish.

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