There are many milestones in an infant's physical, emotional and learning development during the eight to twelve month period. Each baby is an individual, and developmental milestones should not be compared. Babies can reach milestones early or late.
Birth to Three Months
During this early stage, a baby's play will consist of fingers, faces, and looking at objects. Rattles and other toys which make noise will help a baby learn to listen for sounds. Infants in this age group enjoy following objects as they are moved around ...