Visit this area of the White Mountains in California's Sierra Nevada region, where you can hike and see trees that predate ...

Pine is a coniferous tree in the genus Pinus, in the family Pinaceae. There are about 111 species of pines worldwide, although different authorities accept between 105 and 125 species.

A swarm of destructive wasp-like insects is spreading fast, and it could mean bad news for pine trees, holiday traditions, and your backyard.

In a Swiss pine forest, the treetops are being sprayed with mist in a bid to discover the effect that drier or wetter air has ...