cranes fly through a field covered in fog
Falling levels of air pollution drove the tule fog's decline.
The non-native soilborne Phytopthora cinnamomi was introduced in the Ione area of the Sierra Nevada foothills, where it is wiping out two native manzanita species.
Discovering a deadly threat to ecological restoration efforts.
Featuring evolutionary ecologist Erica Bree Rosenblum.