Every fall across the nation, Mother Nature paints the landscape in an array of vibrant colors leaving one awestruck. But ...

The red pigments in some fall leaves have proven to be a puzzle for researchers who debate why leaves bother to go red.

Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether.

Each fall, green leaves transform into the reds, yellows, and oranges of the season. But, why? Here's what to know.

Leaves changing colors is one of the most iconic parts of autumn in the United States. But why do leaves change their color in the first place?