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October 2, 2009

Strange But True!

Q. What do our babies do today that they didn't used to do so much and still don't in parts of the world?

A. They crawl. In a key study of Bangladesh children, anthropologist David Tracer concluded that crawling significantly increases the risk from contact with ground pathogens, such as those causing diarrhea, says Kate Wong in Scientific American magazine.


 
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