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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Episoder(641)

Why chatbots lie, and can synthetic organs and AI replace animal testing?

Why chatbots lie, and can synthetic organs and AI replace animal testing?

First up on the podcast, producer Meagan Cantwell and Contributing Correspondent Sara Reardon discuss alternative approaches to animal testing, from a heart on a chip to a miniorgan in a dish.   Ne...

14 Aug 202531min

Why anteaters keep evolving, and how giant whales get enough food to live

Why anteaters keep evolving, and how giant whales get enough food to live

First up on the podcast, Online News Editor David Grimm brings stories on peacock feathers’ ability to emit laser light, how anteaters have evolved at least 12 times, and why we should be thanking ket...

7 Aug 202528min

Wartime science in Ukraine, what Neanderthals really ate, and visiting the city of the dead

Wartime science in Ukraine, what Neanderthals really ate, and visiting the city of the dead

First up on the podcast, Contributing Correspondent Richard Stone joins host Sarah Crespi to talk about the toll of the ongoing conflict in Ukraine and how researchers have been mobilized to help the ...

31 Jul 202551min

Robots that eat other robots, and an ancient hot spot of early human relatives

Robots that eat other robots, and an ancient hot spot of early human relatives

First up on the podcast, South Africa’s Cradle of Humankind is home to the world’s greatest concentration of ancestral human remains, including our own genus, Homo, Australopithecus, and a more robust...

24 Jul 202534min

Studying a shark-haunted island, and upgrading our microbiomes with engineered bacteria

Studying a shark-haunted island, and upgrading our microbiomes with engineered bacteria

First up on the podcast, Réunion Island had a shark attack crisis in 2011 and closed its beaches for more than a decade. Former News Intern Alexa Robles-Gil joins host Sarah Crespi to talk about how r...

17 Jul 202536min

A tardi party for the ScienceAdviser newsletter, and sled dog genomes

A tardi party for the ScienceAdviser newsletter, and sled dog genomes

First up on the podcast, Newsletter Editor Christie Wilcox joins host Sarah Crespi to celebrate the 2-year anniversary of ScienceAdviser with many stories about the amazing water bear. They also discu...

10 Jul 202525min

Losing years of progress against HIV, and farming plastic on Mars

Losing years of progress against HIV, and farming plastic on Mars

First up on the podcast, U.S. aid helped two African countries rein in HIV. Then came President Donald Trump. Senior News Correspondent Jon Cohen talks with producer Kevin McLean about how in Lesotho ...

3 Jul 202531min

Will your family turn you into a chatbot after you die? Plus, synthetic squid skin, and the sway of matriarchs in ancient Anatolia

Will your family turn you into a chatbot after you die? Plus, synthetic squid skin, and the sway of matriarchs in ancient Anatolia

First up on the podcast, Contributing Correspondent Andrew Curry joins host Sarah Crespi to discuss a pair of Science papers on kinship and culture in Neolithic Anatolia. The researchers used ancient ...

26 Jun 202544min

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