Text and photographs present the physical characteristics, habits, and natural environment of various species of wolves.

Takes readers on an interplanetary tour from the sun to the ever-mysterious Mars, and then, thanks to the Voyager missions, to the planets beyond.

Describes the origins, characteristics, and future of the sun, planets, moons, asteroids, meteoroids, and comets.

A basic introduction to the solar system and Earth's place in it, seasons, and Earth's topography. Contains photographs taken from space.

Introduces exoplanets, examining the planets outside of our solar system, discussing what makes them habitable, and exploring the efforts to discover new life.

An introduction to the physical characteristics, behavior, and life cycle of different kinds of spiders.

Describes the location, nature, development, measurement, and destructive effects of tornadoes, as well as how to stay out of danger from them.

Describes the skeletal system and outlines the many important roles that bones play in the healthy functioning of the human body.

Discusses the nature, causes, and destructive capabilities of earthquakes and describes some notable examples.