How do boys and girls come to understand gender? At what age do they start to develop a sense of time? When does a child grasp the finality of death? This program brings together children of all ages for interviews and experiments that illustrate how we come to learn and accept the facts of life. In numerous examples, the program highlights the ages at which children make developmental breakthroughs, such as distinguishing between animate and inanimate objects, realizing there is a past and a future, and answering that classic question: "where do babies come from?" A Discovery Channel Production. (46 minutes)