Electric cars hybrids rely upon electric motors for propulsion and assistance. Here is a look at how these motors and generators work to generate power.

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

What should you do when a wasp or hornet lands on you? Learn more about why wasps attack and how to avoid getting stung.

Even though pineapples are considered a fruit (and a fruit generally comes from trees—unless it’s a berry), pineapples actually grow on a plant close to the ground. Each pineapple plant bears ...

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

15 Smokey Bear posters were created in the mid-1980s for a major state and federal fire prevention campaign. Explore the collection and their message.

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

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

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.

What are synthetic fabrics, and are they a sustainable choice? Learn about the environmental impact of these fabrics, their dyes, and more.

Cellulose tape is a transparent adhesive tape that happens to be biodegradable too. It is difficult to find, especially in the US. Almost all transparent tape sold here is made of acetate. One ...

Pinyon pine is a widely distributed pine that grows in the Intermountain region of western North America. It is a major indicator tree in the pinyon-juniper life zone. P. edulis is a short and ...