What are the tallest trees in the world? These 10 skyscraping superstars are some of the stalwart examples of their species.

Cloud genera are divided into species to account for their particular shape and internal structure. Certain species only ...

Two species of sloths are endangered according to the IUCN Red List. Learn about conservation efforts and how we can help restore sloth populations.

Gasoline Gallon Equivalents (GGE) are used to determine the amount of energy produced by alternative fuels compared to that of one gallon of gasoline.

Here are maps showing locations of broad types of forest cover by tree types according to frequency of occurrence in the native range.

Want to turn your bathroom into an indoor oasis? From ferns to orchids, here are 10 shower plants that want to live in your bathroom.

Learn how to identify the yellow poplar tree, including facts about its habit, range, management, and more.

There are 145 National Forests in 41 states in the United States. Discover each of them, state-by-state.

Cupro is a byproduct of cotton and a vegan alternative to silk. Does that mean it's a sustainable fabric? Find out exactly how this material is made.

Friends and enemies in the animal world tend to be pretty clear-cut. But as these unlikely pairs show, even Mother Nature doesn't set things in stone.

Most Americans live in urban areas, forming huge hot spots of energy consumption. But while rural residents use less energy overall, cities are often slicker ab ...

Cactus leather can be used for handbags, shoes, furniture, and more. We look at its environmental impact and how it compares to cotton and leather.