More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts warned Monday. In all, 38% of trees are at risk, ...

The "grotesque" baobab tree has long been known as the "tree of life" for its ability to create and maintain its own ecosystem in arid regions. Since the time of the ancient Egyptians, people have ...

With so many varieties sold as Christmas trees, knowing what differentiates a Douglas fir from a Norway spruce is key to ...

Oak trees have been around for more than 50 million years, with individual trees easily living 1,000 years. One of the oldest oak trees in the U.S. is believed to be at least 2,624 years old. The ...

Two types of iconic sequoia trees have grown tall and strong in a surprising place: Michigan. One was believed to be extinct less than 100 years ago. The other is the largest living thing on Earth.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Of all the Christmas traditions, there's nothing quite as magical as visiting a Christmas tree farm. On ...

In Louisiana, January tends to be a cool (this year frigid), wet (including snow last week) month, providing ideal conditions for planting trees. By April, things are already warming up here, and it’s ...

Since their auditions in the spring, new members of Alameda's famous Tap Dancing Christmas Trees—known affectionately as ...

If you celebrate Christmas, you probably have a decorated tree set up somewhere in your house. As a kid, the tree in my house was a dusty old artificial model that had to be assembled branch by branch ...

Of all the Christmas traditions, there's nothing quite as magical as picking out a tree. Picture this: You're strolling through rows of luscious pine, fir, and spruce trees on a brisk afternoon at a ...