The tallest plants alive today can grow to over 100 meters tall. But they evolved from ancestors that were just a few ...

These ancient trees persisted for nearly 200 million years until they all but vanished. Now they line city streets.

Watch 196 days of growth in just minutes as a tiny acorn transforms into a majestic oak tree in this mesmerizing time-lapse ...

Christmas trees—and conifers in general—have made some surprising cameos throughout U.S. history, author Trent Preszler ...