Every spring across Europe, billions of oak leafroller moth caterpillars hatch on oak branches and immediately start chewing. Their survival depends on perfect timing: the larvae must emerge just as ...

University of Alberta research is showing how trees and fungi team up to survive and stay healthy against insect attacks—an alliance that could lead to more resilient forests. Endophytes—tiny ...

COCONUT GROVE, Fla. — From the arid deserts of Arizona to the lush foliage of Florida, trees can make a big difference in the world around us. “Trees are crucially important for our urban environments ...

These amazing photos show what happens when trees fight back against erosion. Even when erosion removes large amounts of soil, many trees survive because their roots extend far below the surface. Some ...

The oak trees saved the blue house on East Calaveras Street. Seriina Covarrubias was sure of it. When she had returned after the Eaton fire, much of the Altadena neighborhood was in ruins. Homes and ...