WALKER’S MAMMALS OF THE WORLD
--> Nonfiction Diverse fauna down under WALKER’S MAMMALS OF THE WORLD: Monotremes, Marsupials, Afrotherians, Xenarthrans, and Sundatherians By Ronald M. Nowak 757 pp. Johns Hopkins University Press Reviewed by David E. Hoekenga, M. D. Walker’s First Edition of Mammals of the World has been a treasured possession of mine since it was published in 1964. Two volumes with black and white illustrations in a black slipcase followed me as a zoology student and then later in medical school as an amateur naturalist. With over five thousand mammals alive in the world today, keeping track of them on seven continents is no easy task. I hoped to be able to compare the new volume at 750-plus pages to the first volume of my old Walker’s , but the new volume works differently. It is based on the oldest evolutionary clades or groupings, starting with the echidnas and platypuses – egg-layers all. Then come Tasmanian devils and bandicoots. None of these creatures are terribly familiar, but the ne...