Learn all about giraffes, the tallest mammals on earth. Detailed graphics, diagrams and video images teach us about a tower of giraffes, their diet and habitats, physical characteristics, behaviour, different species, their life cycle from birth to death, the biology and physiology of giraffes, the circulatory and respiratory system,  the role of the spots on their body, and saving giraffes from extinction. Multiple-choice reviews at the end of each segment reinforce important concepts.