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

Although the chemistry of autumn colours is well understood, there is an ongoing debate among scientists about why trees evolved their vivid autumn colours in the first place.

Behind every autumn leaf lies a chemical shift-chlorophyll fading, carotenoids glowing, anthocyanins rising-that turns survival into spectacle. The post The Science of Fall Foliage: Why Leaves Change ...

We are well into fall, and many trees have shed their leaves. Some, though, have kept their foliage due to a ...

Fall is around the corner and with it comes the changing of the leaves. Tennessee is a state with a wide variety of climate patterns. With mountains in the east and the river delta in the west, the ...

ORLANDO, Fl. – As the days get shorter and the sun lowers in the sky, the intensity of sunlight decreases, signaling to trees that it’s time to prepare for winter. This triggers the leaves to stop ...

Fall is here and leaves across Wisconsin are starting to turn hues of orange, yellow and red. But you might be wondering — why do some leaves change color in the fall? To get to the bottom of fall ...

The physical signs of fall begin when the leaves change color and start to fall from the trees. This transformation is triggered by shorter daylight hours and cooler temperatures. The process of ...

Every fall season, nature lovers look forward to scenic fall foliage. But do we know the science behind why leaves do this once the temperatures start dropping? Here's how nature creates art during ...