"Prenatal exposure to language was known to influence newborns. For instance, past research showed they preferred their mother's voice over those of others.
Still, researchers thought infants did not imitate sounds until much later on. Although three-month-old babies can match vowel sounds that adults make, this skill depends on vocal control just not physically possible much earlier.
However, when scientists recorded and analyzed the cries of 60 healthy newborns when they were three to five days old — 30 born into French-speaking families, 30 into German-speaking ones — their analysis revealed clear differences in the melodies of their cries based on their native tongue."
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