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"exec" writes:

Researchers say child care demands created a need for higher IQs—a hotly disputed view 

http://www.scientificamerican.com/article/does-a-newborn-s-helplessness-hold-the-key-to-human-smarts/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+ScientificAmerican-News+%28Content%3A+News%29 [scientificamerican.com]

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