If there’s one thing parents notice most about their baby’s development, it is the remarkably rapid emergence of motor skills. Imagine starting out as a helpless little slugger, all kicks and jabs, but without the strength or control to even roll over in your crib! And yet, by just one year of age, most infants are able to walk independently—a feat of coordination, strength, and agility that is light years ahead of where they started at birth. How do they do it?
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