One marriage expert says parents' behavior should depend on the age of their kids, and also on a tougher criterion: how the couple argue.

一位婚姻专家说，父母的行为应当取决于孩子的年龄，也取决于一个更严格的标准：两口子吵架的方式是什么样的。

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Psychologist Susan Levine, an expert on mathematics development in young children the University of Chicago, found children who play with puzzles between the age of 2 and 4 later develop better spatial skills.

心理学家苏珊·莱文是芝加哥大学研究幼儿数学发展的专家。她发现，在2岁至4岁之间玩拼图的孩子在后来会发展出更好的空间能力。

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Advertising Age called in a "crisis expert" to assess the situation. "The combination of free food and Oprah is a tsunami, " said Robbie Vorhaus.

广告时代的“危机公关专家” Robbie Vorhaus对此作了点评称：“显然肯德基没有意识到，免费食品加上奥普拉效应带来的会是一场营销海啸。”

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"I am willing to bet Justice Souter had never seen a file-sharing application, " said Tushnet, who is also an expert on cyber-age legal issues.

CNN: Souter known as low-key, fierce defender of individual rights

The remains may be from late Iron Age or early Roman era, an expert said.

BBC: Human and animal remains at the site

Child protection expert Jim Gamble said Facebook's age policy was difficult to check.

BBC: Dad of girl, 12, sues Facebook over her suggestive photos