This food-making process takes place in the leaf in numerous cells containing chlorophyll, which gives the leaf its green color. This extraordinary chemical absorbs from sunlight the energy that is ...

This incredible display is primarily due to the presence and breakdown of various pigments within the leaves. Chlorophyll, the pigment responsible for the green color, starts to fade as daylight ...

Of course, it can also be perfectly normal for some early coloring species. The trick is, figuring out which is which. Is ...

Next to 'why is the sky blue' and 'where do babies come from,' 'why do leaves turn color in the fall' might be the most frequently asked question about nature. Next to 'why is the sky blue' and 'where ...