Ecologist Suzanne Simard has shown how trees use a network of soil fungi to communicate their needs and aid neighboring plants. Now she’s warning that threats like clear-cutting and climate change could disrupt these critical networks.

Wildlife farming is being touted as a way to protect endangered species while providing food and boosting incomes in rural areas. But some conservation scientists argue that such practices fail to benefit beleaguered wildlife.

As the National Park Service marks its centennial this month, the parks are being celebrated for their natural beauty and priceless recreational opportunities. But they also provide a less recognized benefit: the parks serve as a living laboratory for critical scientific research.

The Rocky Flats Plant outside Denver was a key U.S. nuclear facility during the Cold War. Now, following a $7 billion cleanup, the government is preparing to open a wildlife refuge on the site to the public, amid warnings from some scientists that residual plutonium may still pose serious health risks.