Synopsis
Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of science. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American . To view all of our archived podcasts please go to www.scientificamerican.com/podcast
Episodes
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Insects Donate DNA to Unrelated Bugs
10/05/2017 Duration: 01minBacteria swap DNA among themselves. And that process may be more common in multicellular organisms than previously believed. Christopher Intagliata reports.
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Gophers versus the Volcano
09/05/2017 Duration: 02minPocket gophers survived the Mount Saint Helens eruption in their underground burrows and immediately went to work bringing back the ecosystem.
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Wilderness Areas Suffer from Human Sound
07/05/2017 Duration: 02minHuman-produced noise doubles the background sound levels in 63 percent of protected areas, and raises it tenfold in 21 percent of such landscapes.
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Pollution Peaks When Temperatures Top Out
03/05/2017 Duration: 03minAs temperatures rise, energy demands peak, with a corresponding increase in air pollutants. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Hot Chilies Cool Down Gut Inflammation in Mice
02/05/2017 Duration: 02minThe spicy compound in chilies kicks off a chemical cascade that reduces gut inflammation and immune activity in mice. Christopher Intagliata reports.
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Bronx River's Cleanup Brings Herring Home
01/05/2017 Duration: 02minCalled an "open sewer" in the recent past, the Bronx River is now clean enough for a type of herring to once again be introduced and to make runs to the ocean.
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Ancient Human DNA Found in Cave Dirt
28/04/2017 Duration: 01minScientists uncovered genetic traces of Neandertals and Denisovans by screening cave dirt for DNA. Christopher Intagliata reports.
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Gut Microbes Help Keep Starved Flies Fecund
26/04/2017 Duration: 02minMicrobes living in the guts of fruit flies appear to influence the flies' food choice—and promote egg production, even under a nutrient-poor diet. Christopher Intagliata reports.
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Selective Breeding Molds Foxes into Pets
25/04/2017 Duration: 02minEvolutionary biologist Lee Dugatkin talks about the six-decade Siberian experiment with foxes that has revealed details about domestication in general.
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Why One Researcher Marched for Science
22/04/2017 Duration: 02minLisa Klein, from the materials science and engineering department at Rutgers University, commented on the March for Science at an April 21 talk to the chemistry department at Lehman College in the Bronx.
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Healthy Behavior Can Spread Like Illness
20/04/2017 Duration: 02minIf people run more in New York City, that can push their socially connected counterparts in San Diego to run more as well. Christopher Intagliata reports.
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Climate 420 Million Years Ago Poised for Comeback
19/04/2017 Duration: 02minStarting in the next century, atmospheric carbon levels could begin to approach those of hundreds of millions of years ago, and have their warming effect augmented by a brighter sun.
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Traces of Genetic Trauma Can Be Tweaked
15/04/2017 Duration: 02minTrauma can be passed down to offspring due to epigenetic changes in DNA. But positive experiences seem able to correct that. Erika Beras reports.
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Species Split When Mountains Rise
13/04/2017 Duration: 01minPlant species in China's Hengduan Mountains exploded in diversity eight million years ago—right when the mountains were built. Christopher Intagliata reports.
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Shoelace Study Untangles a Knotty Problem
12/04/2017 Duration: 03minResearchers have trotted out data that show a combination of whipping and stomping forces is what causes laces to unravel without warning. Karen Hopkin reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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World Parkinson's Day Puts Spotlight on Condition
11/04/2017 Duration: 02minMichael J. Fox Foundation for Parkinson's Research CEO Todd Sherer, a neuroscientist, talks about the state of Parkinson's disease and research.
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Cave Dwellers Battled Bed Bug Bites, Too
06/04/2017 Duration: 01minResearchers have found the earliest evidence of bugs in the Cimex genus co-habitating with humans, in Oregon's Paisley Caves. Christopher Intagliata reports.
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Extreme Storms Are Extreme Eroders
05/04/2017 Duration: 02minThe storm that swept across the Rockies in September 2013 unleashed huge amounts of sediment downstream, doing the work of a century of erosion. Julia Rosen reports.
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Spiders Gobble Gargantuan Numbers of Tiny Prey
03/04/2017 Duration: 02minThe low-end estimate for how much the world's spiders eat is some 400 million tons of mostly insects and springtails.
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Your Cat Thinks You're Cool
29/03/2017 Duration: 02minA study of house cats and shelter cats found that the felines actually tended to choose human company over treats or toys.