Text and pictures present the formation, types, inhabitants of, and exploration of caves.

Answers a variety of questions about baby animals and their parents.

Text and pictures explain the formation and movement of icebergs, as well as life on these icy masses.

Discusses the tropical rain forests of the world, where they occur, what life they support, and how they are being threatened and destroyed.

Explains the different types of deserts and how they are formed, as well as describing the first expedition to cross the desert of the Empty Quarter in Saudi Arabia.

Text and pictures present information about the formation and growth of volcanoes and their eruptions.