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

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

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 country—doubling 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 syndrome—that it might be a localized allergic reaction in the gut. Sarah also chats with Taline Kazandjian, a postdoctoral research associate at the Centre for Snakebite Research & Interventions in Liverpool, U.K., about how the venom from spitting cobras has evolved to cause maximum pain and why these snakes might have developed the same defense mechanism three different times. This week’s episode was produced with help from Podigy. Listen to previous podcasts About the Science Podcast Download a transcript (PDF) [Image: Rushen/Flickr; Music: Jeffrey Cook] Authors: Sarah Crespi; David Grimm; Jennifer Couzin-Frankel Learn more about your ad choices. Visit megaphone.fm/adchoices

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Sexual trait evolution in mosquitoes and a news roundup

Sexual trait evolution in mosquitoes and a news roundup

Sara Mitchell discusses the co-evolution of sexual traits in mosquitoes and their influence on malaria transmission. David Grimm discusses daily news stories. Hosted by Susanne Bard. [Img: © Sam Cotto...

26 Helmi 201525min

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29 Tammi 201526min

How comets change seasonally and a news roundup

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Myrtha Hässig discusses variability and heterogeneity of the coma of comet 67P as part of Science's special issue on the Rosetta spacecraft. Meghna Sachdev discusses daily news stories. Hosted by Susa...

22 Tammi 201517min

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15 Tammi 201526min

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Vanessa Ezenwa discusses the complex relationship between parasitic infections and tuberculosis in African buffalo and what it can tell us about human health. Online news editor David Grimm dicusses c...

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