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.

The forests of Indiana are a glory this time of year. Lumbering catalpa trees growing above Indianapolis homes are starting to fade into gold and the forests of Brown County have fallen into a vibrant ...

Scientists have long questioned whether the vibrant colors of fall foliage serve an evolutionary purpose. One theory suggests red pigments protect leaves from sun damage, allowing trees to absorb more ...

This animated map shows fall leaf color projections. Red indicates peak color. It’s officially fall in the Northern Hemisphere, which means bright, beautiful foliage isn’t far behind. Parts of the U.S ...

The red pigments in some fall leaves have proven to be a puzzle for researchers who debate why leaves bother to go red. Why do only some leaves turn red in the fall? Scientists can't agree on an ...