Only on PBS can you climb a cliff in Maine, go sea kayaking in the Sea of Cortez with marine biologists, & learn about the reintroduction of the wolf to the greater Yellowstone ecosystem without leaving your desk. These wonderful video clips were brought to you by dozens of public broadcasting stations. Please help support this type of programming and web sites like American Field Guide by pledging to your local station. Click on the link below to go to your local station's pledge form.

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