Behind every autumn leaf lies a chemical shift-chlorophyll fading, carotenoids glowing, anthocyanins rising-that turns survival into spectacle. Every autumn, landscapes across much of the world ...

It’s that time of the year. The leaves are starting to change colors. This week the National Weather Service in Atlanta shared the satellite image above showing fall foliage changes in the Appalachian ...

This sugar maple leaf shows multiple different pigments that cause it to appear green (chlorophyll), yellow (carotenoid) and red (anthocyanin). Summer has given way to fall, and with that the green of ...

"Growing" on the defensive! Here's how researchers are providing a whole new look at how plants make their own protection ...

What’s going on out there — and why? Some version of that is the perennial question on any inquisitive gardener’s mind. Fall provides plenty of dramatic subject matter along those lines, beyond the ...

TOLEDO, Ohio — The fall season is quickly wrapping up and, as the winter chill inches closer, the life cycle of fall colors will end, leaving trees with only their branches left to stand. Throughout ...

Getting your Trinity Audio player ready... Winter will be here soon enough, but enjoy those gorgeous fall leaf colors along the Front Range before any snowflakes arrive. Reach back and recall your ...

Like people, leaves have their limits when it comes to heat. Scientists first reported in 1864 that the leaves of some plants could survive up to 50° Celsius, only to perish beyond that threshold.

An unusual arrangement of leaves in a 407-million-year-old fossilized plant is complicating scientists’ understanding of plant evolution. Most land plants living today have spiral patterns involving ...

If you're lucky enough to live in a place where nature puts on a show in autumn, maybe your nose knows it's fall as soon as you step outside. "That's what fall is all about. Leaves are falling off the ...

Scientists studying crops irrigated with treated wastewater discovered that trace pharmaceuticals often collect in plant ...

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 ...