A very casual handling of the concepts of evolution which provokes more annoyance than interest. The writing is glib and proceeds in short, choppy sentences, paragraphs, and uneven chapters to render a chatty, wordy, TV-oriented development of man's ""undoubted"" descent (posthaste) from those apes. Many truths are held to be self-evident and not needing much substantiation. E.g. ""We all know that the Eskimos who have lived in the Arctic for a long time are short and stocky."" Now most young readers would not be so knowing, and a slender Eskimo girl living near the Kirkus office would give them good reason to look further for a less superficial treatment of this and the related phenomena of animal evolution.