Simple text and illustrations examine the characteristics, behavior, and various kinds of spiders.

Describes the characteristics of the planet Jupiter and its moons, as revealed by photographs sent back by unmanned spaceships.

Discusses what we know about the size, density, atmosphere, rings, and moons of Saturn, as well as what we may learn in the future.

Traces the course of the Tigris and Euphrates Rivers, emphasizes their effects on human settlements and civilization, and indicates their contributions to the development of Turkey, Iraq, and Syria.

Describes the development of underwater archaeology and the information it has discovered concerning early shipwrecks and their cultures.

Introduces the discipline of underwater archaeology and the techniques used to find and study submerged ships.

Examines archaeological excavations of the watercraft of ancient Native Americans and what the findings tell us about the daily life and culture of people who lived thousands of years ago.

Examines the culture of the Omaha Indians, from their life in North America before the Europeans' arrival to the present day.

Describes the excavations of the watercraft of explorers, settlers, and traders who visited the American West from the 1600s to the 1800s and what the findings reveal about life in early America.