This article discusses the development of your baby’s sense of hearing, a sub-domain of the Physical developmental area!
Your baby was born with an excellent sense of hearing, almost as good as an adult’s. He has actually been eavesdropping on your conversations since his 20th week in the womb! So by the time he is born, not only can your baby hear your voice clearly, but he can differentiate between several tones you use, even if he can’t quite understand what you are saying yet. All that practice listening to your conversations has paid off!
Hearing will be important in the development of linguistic, social, and cognitive skills, so checking your baby’s ears before leaving the hospital is recommended. If you don’t get the chance, look for the Moro reflex by startling him with a loud or unexpected noise before the two-month mark, because that’s when the reflex disappears.