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Counting research rodents, a possible cause for irritable bowel syndrome, and spitting cobras – Science Magazine

On this week’s show: A new estimate for the number of rats and mice in U.S. labs, a possible explanation for irritable bowel syndrome, and how cobras evolved to…

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Online News Editor David Grimm joins host Sarah Crespi to discuss a controversial new paper that estimates how many rodents are used in research in the United States each year. Though there is no official number, the paper suggests there might be more than 100 million rats and mice housed in research facilities in the countrydoubling or even tripling some earlier estimates.
Next, Staff Writer Jennifer Couzin-Frankel talks with Sarah about a new theory behind the cause of irritable bowel syndromethat…

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