Climate change may be influencing the timing and intensity of fall foliage. While the seasonal light signal remains the same, ...

But why do leaves change color in the fall? The short answer? It's how trees prepare for winter. Decreasing daylight tells the trees that it's time to stop putting energy into growing bigger and ...

What causes leaves to change into bright colors before they fall off the trees? Is it primarily the temperature change?

Add Yahoo as a preferred source to see more of our stories on Google. Davealan/Getty Images You might've felt a slight chill in the air and noticed earlier sunsets, but determining when the leaves ...

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 ...

It's that time of year again. Fall, when the leaves turn color and the Yankees turn into spectators. At least one of these is enjoyable. A lesson on the chemistry of colorful leaf pigments shows that, ...

Leaves changing colors is one of the most iconic parts of autumn in the United States, and there's still time to catch stunning fall foliage before trees become totally bare leading into winter. But ...