Whether or not man has inviolable rights on earth or whether wildlife should be preserved at all costs: this is the question which sent Dr. Grzimek and his son, Michael, to the Serengeti National Park in Tanganyika, one of the last places on the earth where great herds of wildlife migrate and live unmolested, at least in theory, at the present time. The record of their work in photographing and counting the animals, studying their migratory patterns, their food and habits, is a brilliant and fascinating account. It is also an extremely eloquent argument for Dr. Grzimek's premise: that the National Park should be closed to humans (whites and blacks hunt, poach and destroy the wildlife senselessly) and that the diminishing hordes of animals should be preserved for future generations. Whether flying their single- engine black and white striped plane or trying to catch a zebra to tag it with yellow paint, the courage, dedication, thoroughness and love of animals are apparent in father and son. Michael Grzimek was killed in a plane crash as he and his father were completing their survey so that the book stands as a memorial as well as a fine contribution to our knowledge of African big game. There are lovely black-and-white and color plates of all sorts of rare game: Thompson's gazelle, kongoni, warthogs, wildebeest, hartebeest-and lions snoozing under the wings of air plane.