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.

There are some 73,000 species of trees on Earth, according to one recent estimate. The writer Daniel Lewis zeroed in on a tiny fraction of them for his new book, "Twelve Trees." Each chapter is one ...

Ecologist Suzanne Simard says trees are "social creatures" that communicate with each other in remarkable ways — including warning each other of... Trees Talk To Each Other. 'Mother Tree' Ecologist ...

How can trees tell you stories about the past? Trees started to live on Earth many thousands of years ago. They adjust so well to their environment and “talk” to each other through the “wood wide web.

Each Fall, one highlight is watching the leaves change after a bit of cooler weather arrives. Why do they fall off of stems by Winter, though? There are three key ingredients in this process happening ...