Add Yahoo as a preferred source to see more of our stories on Google. Mark Harmon crouches low next to log number 219: a moss-covered western hemlock tree trunk, five meters long, lying dead on the ...

In the forests of the southeastern United States, dense tree cover dominates most landscapes. That's why the Appalachian Trail is sometimes nicknamed "The Green Tunnel." But avid hikers know that ...

Trees laden with moss and lichen in Smith Inlet, near Great Bear Lodge in British Columbia's Great Bear Rainforest, one of the most intact habitats on earth for grizzly bears.

Many at-risk forest tree species will probably need biotechnology along with traditional tree-breeding approaches to survive, according to insights published in the July issue of the journal New ...