Unfortunately almost all of Aristotle's original works have been lost yet his ideas and philosophy were so widely known throughout the world that we still have many of these great volumes of knowledge. The Roman writer Cicero viewed Aristotle's work so highly that he labelled them as a "River of Gold". In this book Aristotle studies the animal kingdom in all its forms such as their behavior, instincts, activities and nature. Over 500 animals are researched in this book. Please Note: This book is easy to read in true text, not scanned images that can sometimes be difficult to decipher. The Microsoft eBook has a contents page linked to the chapter headings for easy navigation. The Adobe eBook has bookmarks at chapter headings and is printable up to two full copies per year.