In this photo illustration Google's Chrome browser shortcut, Google Inc.'s new Web browser, is displayed next to Mozilla Firefox shortcut and Microsoft's Internet Explorer browser shortcut. Alexander Hassenstein/Getty Images hide caption

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Food writer Bee Wilson says that babies are most open to trying new flavors between the ages of 4 and 7 months. Duane Ellison/iStock hide caption

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A customer looks at a book at Amazon Books, the first brick-and-mortar retail store for the online retail giant, on Nov. 3 in Seattle. Elaine Thompson/AP hide caption

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Paul Tang, owner of the People's Bookstore in Hong Kong, is still selling works that are critical of the Chinese leadership and are banned on the mainland. Five people in the Hong Kong book industry disappeared recently. Some have turned up in police custody on the mainland. But Tang says he isn't particularly worried about his safety. Anthony Kuhn/NPR hide caption

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