What to know before the extreme cold settles in.

“The electrical activity of trees is a real phenomenon but it’s still a nascent field of inquiry,” said Novoplansky. “The ...

It decimated magnolias, oaks and other species in wealthy suburban enclaves, rural communities and urban parks.

When temperatures plunge and the air goes painfully still, people in northern forests sometimes hear a sharp crack that ...

Experts say trees do not explode but can crack loudly due to rapid temperature changes. This phenomenon, known as "frost cracking," occurs when tree sap freezes and expands. Young trees, thin-barked ...

A freshman seminar encourages students to behave differently in the world and feel more passionately about biodiversity.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...

An army of treelike creatures called Ents marches to war in the second The Lord of the Rings movie, The Two Towers, walking for miles through dark forests. Once they arrive at the fortress of the evil ...

In the early 1990s, Oakmont Country Club—host of the 2025 U.S. Open, its 15th men's or women's major championship and revered as one of the nation’s greatest courses—as covered in trees. Each hole was ...

Mushrooms growing on trees can be a sign of decay and should be inspected by a certified arborist. Hispidus, Ganoderma, and Armillaria are three types of fungi that can indicate tree risk. Not all ...