Stidworthy, John

Introduces mammals which live and feed on the plains and savannahs, such as gazelles, tapirs, and kangaroos.

Describes a year in the life of a male sperm whale who lives most of the time in cold Arctic waters, except for the time he goes south to tropical waters to mate.

Text and microscopic photographs introduce various forms of plant life, their methods of reproduction, and their assimilation of nutrients.

Looks at some of the visible ways that the earth can be changed in a matter of minutes, and discusses how the natural forces involved in earthquakes and volcanoes can raise mountains, build islands, change weather and help to produce varieties of plants and animals.