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Cover Story Setting rivers free: As dams are torn down, nature is quickly recovering

With the removal of many dams, conservationists are seeing the return of the natural bounty that fed Native Americans and astonished European settlers.

Ann Hermes/The Christian Science Monitor

“Look underneath you,” commands Nate Gray, a burly biologist for the state of Maine. He reaches down to the grate floor of a steel cage perched on a dam straddling the Sebasticook River, and pulls back a board revealing the roiling river 30 feet below. “All you see is fish.” 

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