Want more charts like these? See our charts on the secrets of the jobless recovery, the richest 1 percent of Americans, and how the superwealthy beat the IRS. How Rich Are the Superrich? A huge share ...

April 10, 2026 • How do bookstores choose the books they stock, and how does that affect what customers read? It may not seem like it, but every shelf in a bookstore is a highly valuable and contested ...

All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show how ...