Ключевые слова: age, aging, baby, body, book, boy, centimeter, child, childhood, children, cycle, dad, development, evolution, father, figure, grow, growth, happy, height, high, infant, kid, male, measure, measurement, meter, miniature, mom, month, monthly, mother, newborn, parent, parenthood, parenting, people, period, phase, process, progress, record, son, stage, step, tall, time, toddler, transformation, walking,