World of nature

Text and illustrations introduce animals with fur or hair who nurse their young, breathe fresh air, and except for two species give birth to their young alive instead of laying eggs.

Brief rhyming text and illustrations present a variety of plants that do not flower but propagate by means of spores, seeds, and cones.

Explores all aspects of the oceans: their structure and their islands, their currents, waves, and tides, and the life on, in, and around their waters.

Surveys the history of the earth and points out change and variety in the very different landscapes found on Earth today.

Text and over 90 color photos show animal species close to extinction.

Brief text and lavish illustrations explain plant reproduction, the purpose of a flower, and some plants which do not seem to be flowers, but are.

A pictorial introduction to the animals that lay eggs, including chickens as well as other birds, reptiles, amphibians, fishes, insects, and even a few mammals.