infant and toddler development: Media
Videos
Discover the power of play in human development
Learn more about how play helps humans develop.
Video: Encyclopædia Britannica, Inc.
Find out the importance of social and emotional learning
Learn more about social and emotional learning in childhood.
Video: Encyclopædia Britannica, Inc.
Images
infant development
At about 12 weeks babies usually can lift their heads.
© FatCamera—iStock/Getty Images
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