When you've always known deciduous trees to drop their leaves in winter, seeing one that hasn't can be unsettling. Here's why ...

For millennia, the western chimpanzees of Taï National Park in Ivory Coast have communicated with each other in a dialect of ...

This phenomenon, called marcescence, adds a unique dimension to the winter landscape, and gives me something to ponder while ...

Get ready to "plant" for the future! The City of Coeur d'Alene is offering free tree planting through its Re-Leaf Program.

City arborists have also identified the foliar fungus infesting older American sycamores and lesser-known London Plane trees ...