Why do some trees not lose their leaves in winter? And why do leaves sometimes not change color in fall? Get expert answers.

As the outside world normally is around this time each November, things have changed a lot. Many trees are already devoid of leaves while others are still covered with colorful ones. When the ...

Strolling in my neighborhood the other day, I saw two trees with autumn foliage that I thought would have made the most compelling combination had they been planted side by side. One was a ginkgo tree ...

This is the time of year when Nicole Hughes gets constantly distracted by the fall foliage as she drives around North Carolina. "I'm always looking," says Hughes, a biologist at High Point University.