Descriptive text and illustrations introduce a number of prehistoric beasts, such as borhyenas, diatrymas, and smilodons, discussing their physical characteristics and where they lived.
An illustrated overview of North America's Pleistocene-epoch mammals that includes profiles of various animals and discusses the geologic lead-up to the ice ages and the possible causes of extinction. Includes a glossary, a bibliography, and a list of museums and fossil sites.
Introduces the physical characteristics, habitat, and behavior of this prehistoric relative of modern-day big cats, such as the lion, cheetah, and leopard.