Why are newborn bears so tiny? How does the joey find its way to its mothers pouch? Why are fruit bats born large, alert and with their eyes open? These and many other questions are answered in this essential guide to the life cycles of the worlds mammals. This fascinating book describes and illustrates the various, and sometimes unique, ways in which mammals raise their young and live their lives. More than seventy different types of mammals are represented, from the chimpanzee, which does not gain its independence until the age of seven or eight, to the tiny hamster, which is already fending for itself after only two months. The main text provides a vivid synopsis of each animals life, including how the animal learns to survive, achieves independence, and mates. Superb illustrations and detailed captions offer additional about the various stages that the animal goes through. Multiple points of interest highlight special aspects of each animals life, such as breeding season, litter size, and average life expectancy.