In preparing the book, Zihlman realized that "many of the human characteristics I would be writing about are perfectly adapted for this kind of book — namely, color vision, hand-eye coordination, manual dexterity, and a brain especially evolved for tool-using!" Where else would you get the opportunity to use all of these at once? The plates to be colored in illustrate evolution in general, genetics, the living primates, primate evolution, and fossil evidence for human evolution. Now in a revised and expanded second edition.