How Did They Get Here?

Students will investigate a variety of resources to formulate a hypothesis regarding how Rusty Crayfish arrived in the St. Louis River.



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Great Lakes Literacy Principles:
1. The Great Lakes, bodies of fresh water with many features, are connected to each other and to the world ocean.
4. Water makes Earth habitable; fresh water sustains life on land. :
5. The Great Lakes support a broad diversity of life and ecosystems.
7. Much remains to be learned about the Great Lakes.

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