Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Black oaks inhabit the Eastern half of the United States except Florida ...

The tundra biome is the coldest and one of the largest ecosystems on Earth. It covers about one-fifth of the land on the planet, primarily in the Arctic circle but also in Antarctica as well as a ...

Explore key issues and ideas in urban design and planning, including bike infrastructure, Vision Zero, walkability, density, and more.

Regina Bailey is a science writer, educator, and board-certified registered nurse. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists.