Why Are 'Mama' and 'Dada' a Baby's First Words? - Yahoo! News: "Why Are 'Mama' and 'Dada' a Baby's First Words? LiveScience Staff
LiveScience.com
Wed Aug 27, 10:25 AM ET
A baby's first words are often 'mama' and 'dada,' much to the delight of parents. Now scientists think they know why."
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