Add Yahoo as a preferred source to see more of our stories on Google. Redwoods, it turns out, have two types of leaves that look different and perform very different tasks. This previously unknown ...

The spiky, iconic Canadian maple leaf. A large, lush Florida palm leaf. Thin aspen leaves rustling in the crisp Colorado air. You can probably recall many different leaf shapes from many different ...

Since the invention of synthetic dyes, people around the globe have been using different types of plants as a source of ...

Coast redwoods are amazing trees that scientists have studied for generations. We know they are the tallest living trees and have survived for millennia, resisting fire and pests. Because redwoods are ...