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.

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

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.

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

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

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 ...

Behold the tundra biome. Characterized by extremely cold temperatures and treeless, frozen landscapes, the species here are marvels at adapting to the harsh climate.

Here's how to identify certain deciduous trees by closely examining the characteristics of their leaves.

Learn how to identify different types of common trees with these leaf silhouettes, including maple, sweetgum, birch, oak, and more.

12 Bizarre Examples of Genetic Engineering Here’s a look at some genetically engineered plants and animals.

Learn how composting toilets work, different types, maintenance tips, how to use them, and what happens to the waste in a composting toilet.