Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young trees, and it is finally paying off for quaking aspen. When you purchase ...

In coastal Oregon, the state's tallest fir tree is burning. Douglas-firs (Pseudotsuga menziesii) are Oregon's most common trees, but the tree that's ablaze, known as the Doerner Fir, is special.

From “experimental archaeology” to the mysterious appeal of exploration, the wide-ranging subjects detailed in these titles captivated Smithsonian magazine’s science contributors this year Joe Spring, ...

Mark Harmon crouches low next to log number 219: a moss-covered western hemlock tree trunk, five meters long, lying dead on the ground in the lush green woods. It’s marked by a thin aluminum tag. The ...

Buddhist temples in China are home to trees from dozens of endangered species, a new study shows. Some of them are almost 2,000 years old. A Phoebe zhennan tree, about 400 years old, in the Wen-Qi ...