Miles Scott, dressed as Batkid, talks strategy with Batman before saving a woman from peril in San Francisco on Friday. The Make-A-Wish Foundation turned San Francisco into Gotham City for Miles, creating a daylong event to grant the leukemia survivor's wish to be a superhero. Jeff Chiu/AP hide caption

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Jeff Chiu/AP

To children the world is a vast experiment, a laboratory of how things interact with one another. iStockphoto.com hide caption

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Mom loved him. You love him. Prince performing in 1985. Ron Wolfson/Landov hide caption

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Ron Wolfson/Landov

Top hits 1980-1984 from the study: can you name them?

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Laura Molina, 9, shows the mask she created expressing the feeling of "sadness." Her mother is being treated for breast cancer at the Lyndon B. Johnson public hospital in Houston. Carrie Feibel/KUHF hide caption

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Carrie Feibel/KUHF

Parents Grapple With Explaining Cancer To Children

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Of Blocks And Books: Parents may be more likely to take a young daughter to the library than a son, and to read to the girl for longer periods of time, a new analysis suggests. Hulton Archive/iStockphoto.com hide caption

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Young Girls May Get More 'Teaching Time' From Parents Than Boys Do

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Even during sleep, babies' brains continue to take in and process angry voices. iStockphoto.com hide caption

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Shhh, The Kids Can Hear You Arguing (Even When They're Asleep)

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