Harris, Susan

Introduces the solar system, rockets, satellites, space travel, UFO's, and other elements of outer space.

Presents easy-to-read accounts of sightings of and close encounters with unidentified flying objects and alien creatures.

Discusses the physical characteristics and behavior of polar bears, seals, sea lions, otters, coypus, manatees, whales, beavers, dolphins, and other mammals who spend all or part of their lives in water.

Describes general characteristics of reptiles with particular emphasis on turtles, tortoises, crocodiles, alligators, lizards, snakes, and tuataras.

Briefly examines the ocean's currents, floor, vegetation, and animal life. Includes a discussion of underwater exploration.

Facts about the physical characteristics and behavior of the members of the crocodilian family.

Describes the physical characteristics and habits of various types of whales.

Explains in simple terms different types of volcanic eruptions, the formation of volcanoes, and the theory of plate tectonics.

Introduces various types of ships and boats and highlights their history and uses.