• Assistant Research Professor of Ecosystem Science and Management, Penn State
A raccoon with a fish at the Corkscrew Swamp Sanctuary in Naples, Fla. Michael Siluk/UCG/Universal Images Group via Getty Images

What is a wetland? An ecologist explains

The US Supreme Court opens its 2022-2023 term with a case that could greatly reduce federal protection for wetlands. Here is what makes these ecosystems valuable.

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