"Thousands of years ago, ancient engineers came up with a way to cross obstacles that prevented people getting from one place to another. They built a passageway under the ground called a tunnel. A tunnel sounds simple. After all, it is just a tube built through dirt or stone. But building a tunnel is one of the hardest challenges an engineer can face. This scientific text highlights the origin of the first tunnels, the greatest tunnel builders, the...

"Imagine living and working on a ship with no windows for months on end. Now imagine that ship is sailing underwater! How Things Work Submarines introduces readers to the technologies that make life under the sea possible." --

Discusses the history, development, habits and care of American shorthair cats.

"Introduces the reader to remote control planes."--

Discusses the history, development, habits and care of Abyssinian cats.

"Extraordinary environments endure through the efforts of conservationists such as John Burroughs. In this engaging biography, readers will learn about Burroughs's farming childhood, his mother's influence on his early love of nature, his education at various schools in New York State, his teaching career, and his wife and family. Readers will discover Burroughs's friendship with the poet Walt Whitman, who inspired Burroughs to become the famous...

Discusses the history, development, habits, and care of Siamese cats.

Discusses the history, development, habits, and care of Manx cats.

In this engaging biography, readers will learn about Stegner’s childhood in the United States and Canada, his education at the University of Utah and the Iowa Writers’ Workshop, his wife and son, and his work as a college professor. Readers will discover his career as an award-winning author, his involvement with the Sierra Club, and his work to prevent dams in Dinosaur National Monument. Stegner’s love of nature, in particular the West, helped...