Calistoga is joining Napa Valley’s live music landscape with plans for a new multi-day festival at the Calistoga Fairgrounds.

Across 24 peaks and 240 miles through the Sierra Nevada, a UC Davis team searches for high-altitude Jeffrey pines to learn ...

New data show resilience among the rainforest’s giants, though scientists warn that nutrient limits and rising heat could end ...

Pictures of DNA often look very tidy—the strands of the double helix neatly wind around each other, making it seem like studying genetics should be relatively straightforward. In truth, these strands ...

U.S. cities are increasingly recognizing trees as critical infrastructure but still need help figuring out where to plant them, conservation advocates said Tuesday as they launched a tool to map where ...

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet ...