New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.

If you find brown tips on your houseplant, you have to do a little detective work to find out what happened. This guide ...

We all know it's important to eat your vegetables, and dark leafy bitter greens are a great addition to any diet. They are a ...

If you want to see year-round color, you don't need to look further than your backyard. There are many native shrubs and ...