Add Yahoo as a preferred source to see more of our stories on Google. By spring, the leaves on trees grow and assume the color green, and by autumn, they change to sometimes brilliantly warm colors ...

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 ...

We are soon approaching the time of year with shorter days, longer nights and cooler temperatures; when these changes occur, the vibrant green leaves on trees begin to slowly change to reds, yellows, ...

A patch of bright red here, a little light yellow there and a smidge of orange around. Leaves are starting to change color in Pennsylvania but most aren't quite ready for their full show yet. Peak ...

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 ...

As the long, warm days of summer transition to a darker, cooler winter, leaves across much of the country put on a dazzling display of colors. And as it turns out, the oranges, reds, browns and ...

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 ...