Add Yahoo as a preferred source to see more of our stories on Google. The autumn sweater weather and early sunsets are giving way to the beauty of fall's changing leaf colors. Here's when and what to ...

What is the purpose of fall foliage color? As humans, most of us look at the world through rose-colored glasses — maybe as gardeners it’s green-colored glasses. And that shading sometimes leads us to ...

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 ...