If we take some leaves of plants and digest them in alcohol ... one of which is blue and the other yellow, which colors, blended, produce green. Be this as it may, the ultimate elements are ...

Red and green aren't just a pretty pair—these Christmas colors have been associated with winter holidays for centuries ...

But what exactly happens scientifically to cause this change? The green color in leaves comes from a pigment called ...

That's because it's not just a blur of color here. With all the evergreen plants, every tree and shrub that puts on a colorful display, glows like a jewel against the green background. Why is it ...