Scroll down for a transcription of this episode. Trees aren’t just competing for sunlight and soil—they’re also looking out for one another. Scientist Suzanne Simard reveals the unexpected ways trees ...

Learn how to identify trees—in one week National Geographic's Wonder Lessons will teach you how to navigate the stars, spot cloud types, recognize common trees, and identify different kinds of rocks.

Do schools and trees mix? You may have memories of shady playing areas and shelter belts by playing fields, but our recent study suggests this is increasingly an exception rather than a rule. Trees ...