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They have very little control of their voluntary muscles. They rely mainly on reflex actions, such as sucking, yawning, sneezing, crying, and burping.
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Babies are learning who they are by how they are treated.
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Fine motor skills (holding a spoon, pincer grasp) and gross motor skills (head control, sitting, and walking)
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Advances in language, memory, thinking and reasoning, reaching the high point of his first words as he reaches his first birthday