By 3 months of age, babies look closely at the eyes and mouth when studying faces. this change in focus is due to

By 3 months of age, babies look closely at the eyes and mouth when studying faces. this change in focus is due to improvements in visual scanning ability.

Binocular vision which refers to the ability of the baby to focus on an object with both eyes appears between two and four months of age. By 3 months infants  have  sharper eyesight which enables them to better focus on objects and they start to recognize.

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