A Chinese proverb says that the best time to plant a tree was 20 years ago, and the second best time is today. But it's not ...

Seeing blue dots, red Xs, orange circles and purple bands on trees and wondering what they mean? Here's what we found out ...

If you're wondering why squirrels seem to vastly outnumber raccoons—or why certain car brands dominate city streets—a team of ...

Their idea was simple: an eclipse is a profound event that inspires awe and collective behavior in both humans and other ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

Famous sequoias like the General Sherman are protected by a long history of intentionally set fires, but other giant sequoias are in big trouble. With its crown on fire from the Windy Fire, a ...