Books in Creatures That Walk, Swim or Fly series

Describes many kinds of fish, from the tiny pygmy goby to the gigantic whale shark, and explains how they live

Describes the large sea mammals, related to cattle, sheep and deer, which are interesting for their intelligence, their gentleness, and their adaptation to the ocean environment

An introduction to the large group of animals which grows hair, produces milk for their babies, and gives birth to living young

An introduction to insects, the class of animals containing more than 800,000 kinds

Describes the physical characteristics, habits, and natural environment of various species of reptiles and amphibians

Briefly traces the development of birds and describes some of the many species living today