The great apes - ingenious, clever, perceptive - are the closest thing humans have to living relatives. These thoughtful and creative tool users continue to surprise researchers with their exhibitions of self-awareness and an apparent ability to reach into the minds of others. Explore the striking physical features, evolution, social structure, habitat, and communication skills of the great apes. Computer graphics, 3-D animation, and spectacular wildlife film footage give a detailed look at the lives of these endangered mammals. Scientists discuss the genealogy and evolution of the apes, as well as providing facts and stories about the unique qualities of these creatures who so closely resemble humans.

Almost everybody loves dolphins. Some people think of them as being cooperative, intelligent and caring. Others even view them as being highly evolved versions of ourselves. Now the latest research has shed new light on these fascinating creatures, and some of it is surprising. In this Ultimate Guide volume, experience the beauty and wonder of dolphins and their underwater realm. Marvel at their spectacular - and seemingly impossible - acrobatics. Dive with them to depths of six hundred feet. Learn about their complex social skills, and discover the fantastically diverse membership of this far-flung family - including the mysterious freshwater dolphins of China, India and South America

Documentary examining the science, safety and history of aviation. Traces the evolution of planes through one century and two world wars. Uses graphics and animation to explain basics of flight, from the components most planes share to the physics that makes planes defy gravity.