A lawsuit to protect the snail darter from the Tellico Dam in Tennessee offered the first real test of the 1973 Endangered Species Act. But a new study disputes the fish's status as a distinct species
The climate-altering eruption came from the Zavaritskii volcano on an uninhabited island in the Pacific that once hosted a Soviet submarine base, according to a new study
The 2,500-foot-long Vasari Corridor impressed guests of the Medicis and other leaders that followed (including Benito Mussolini). Now, it's reopening to the public
A hub dedicated to the latest on how global change affects life on Earth today and on what solutions scientists, including those at the Smithsonian, are researching to build a more sustainable planet
One of the smallest owls in North America, the northern saw-whet lives among us and is rarely seen—but one volunteer science project aims to find them and uncover their secrets year after year