Recent scientific discoveries suggest that Earth was once home to enormous trees, dwarfing today’s tallest redwoods. These ancient giants have left behind intriguing clues in the form of fossils and ...

With spring in the Northern Hemisphere in full bloom, forests are again beckoning hikers onto paths that wend their way through thousands of acres of old growth trees. Such forests not only offer ...

NEW YORK -- It's a tough time to be a tree. For this Earth Day, National Geographic has focused its lens on humanity's relationship with the world's 3 trillion trees and 10 billion acres of forest, ...