Let's answer this question slowly: Has a baby ever had a moustache?

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When babies are in the womb, many have hair known as lanugo. Lanugo is unpigmented, downy hair that is sometimes found on the body of fetuses and babies. Lanugo can grow anywhere on a baby's body but is usually shed before the baby is born and is reabsorbed by the mother. So the answer is yes.
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