Humans and other vertebrates are the most prominent animals on earth, and share a collection of characteristics that have made them the world's dominant forms of life. This newly revised series examines the human species in particular, and illustrates how it functions as the sum of a number of independent yet interacting systems and sub-systems. Through an artful combination of live-action photography and animation this series describes and illuminates each of these systems from the inside out. A perfect introduction to human biology and physiology tailored to the middle-school audience. There are five segments in this series and the titles included are: "Blood and Circulation," "Bones and Joints," "Breathing and Respiration," "Digestion and Nutrition" and "Muscles and Movement." Also featuring three bonus segments: "Food Pyramid," "Healthy Snacks" and "Dangers of Obesity."