This coloring book serves as an educational resource designed for high school biology and college zoology students, as well as for nature enthusiasts. It aims to impart knowledge about the structure and function of various animal groups, ranging from simpler organisms to more complex ones. Each illustration in the book is accompanied by concise and informative texts that enhance the learning experience. This book may contain a sharpie mark on the top or bottom edge and may show mild signs of shelfwear.(This book may contain a sharpie mark on the top or bottom edge and may show mild signs of shelfwear.)