By the late 1800s the free-ranging buffalo of the western plains of North America were almost extinct. This documentary is the story of the buffalo's revival. Live action, eye-witness accounts and archival photos document our fascination with this ancient and legendary animal.

The series explores the epic history of evolutionary challenges to mammals to reveal how they finally achieved predominance over other species in the world after dinosaurs and how the present ecosystem developed through meteorite impact, volcanic activities, and tectonic movements.

Shows places where rodents live, such as grass, rock crevices, or underground, and observes how they store food. Explains that rodents outnumber other mammals in both kinds and numbers. Points out that while some rodents spread disease or damage crops, others are important aids in scientific studies.

One of the absolute finest efforts on Patoo Brigham's career remains to be one of the most iconic pieces of animation to ever impact their legacy of Flipnote Hatena

Surveys the hoofed mammals, called ungulates, including those which are even-toed, such as hippopotami, pigs and deer and those which are odd-toed, such as rhinoceroses and horses. Describes their diets, feeding habits, special adaptations and usefulness to man.

Points out that mammals, including the anteater and seal, have hair and nurse their young. Shows representative members of mammalian groups - carnivores, rodents, ungulates, marsupials and primates.