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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Ants Use Celestial Cues to Travel in Reverse
24/01/2017 Duration: 03minThe six-legged savants appear to use celestial cues and three forms of memory, as they blaze a trail back to the nest. Karen Hopkin reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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High-Sugar Diet Makes Flies Drop Like...Flies
23/01/2017 Duration: 02minA study examines the effects of a high-sugar diet on the life spans of fruit flies. Another studies how the flies’ appetite-suppressing pathways may be similar to ours. Karen Hopkin reports.
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Pesticide Additive Could Be One Culprit in Bee Deaths
21/01/2017 Duration: 01minA common pesticide additive, known as an "inert" ingredient, could be one of the causes of the die-offs beekeepers have observed in their hives. Christopher Intagliata reports.
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Knot Not Easy to Knot
18/01/2017 Duration: 02minChemists have synthesized the most complex molecular knot ever, using a strand just 192 atoms long. The advance could lead to new tougher materials. Christopher Intagliata reports.
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Bat Chatter Is More Than a Cry in the Dark
14/01/2017 Duration: 02minUsing algorithms developed for human speech recognition, researchers decoded which bats in an experimental colony were arguing with each other, and what they were arguing about. Christopher Intagliata reports.
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Bird Feeders Attract Bird Eaters, Too
13/01/2017 Duration: 02minSome predators are attracted to the food in bird feeders, and end up targeting nestlings, too. Jason G. Goldman reports.
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Adult Daughter Orcas May Trigger Moms' Menopause
12/01/2017 Duration: 03minCompetition between older female orcas and their adult daughters when they can breed simultaneously may cause the matriarch to enter menopause. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Climate Cycles Could Have Carved Canyons on Mars
11/01/2017 Duration: 02minResearchers think Mars may have experienced a series of climate cycles, which etched the planet’s surface with river valleys and lake basins. Julia Rosen reports.
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Hair Cells Could Heal Skin Sans Scars
06/01/2017 Duration: 02minHair follicles appear to be key in reprogramming other cells in the wound, restoring the original skin architecture, instead of simply scarring. Christopher Intagliata reports.
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Concrete Defects Could Become Strengths
05/01/2017 Duration: 01minBy optimizing the imperfections in concrete, manufacturers could make the material tougher and stronger—allowing builders to use less of it. Christopher Intagliata reports.
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Zika Linked to a Variety of Birth Defects
03/01/2017 Duration: 01minZika virus infection during pregnancy appears to cause a range of birth defects, such as joint, eye and ear abnormalities, in addition to microcephaly.
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When Dining for Trillions, Eat Wisely
29/12/2016 Duration: 02minWhat you ate in the past can shape the diversity of your gut flora, and affect how well your gut microbes respond to new foods. Christopher Intagliata reports.
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Weakest Piglets May Sneak Help from Strongest Siblings
28/12/2016 Duration: 04minIf a weak piglet positions itself next to a strong sibling while feeding, it may get some extra nutrition from inadvertently stimulated mammary glands. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Isolated Low Temps May Reassure Climate Skeptics
26/12/2016 Duration: 02minAreas of the country that have experienced record low temperatures since 2005 happen to be home to many global warming deniers. And researchers theorize there may be a connection. Christopher Intagliata reports.
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Bats Learn to Take White-Nose Punch
23/12/2016 Duration: 02minIn areas where the white-nose syndrome fungus has been around for awhile, little brown bats seem to have found a way to limit the disease damage.
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"Necrobiome" Reveals a Corpse's Time of Death
22/12/2016 Duration: 02minThe microbial ecosystems inhabiting corpses could help forensic scientists determine a person’s time of death, even after almost two months. Christopher Intagliata reports.
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Pregnancy Primes the Brain for Motherhood
19/12/2016 Duration: 03minAreas of the brain related to social cognition shrink in first-time mothers—a structural change that could boost maternal attachment. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Small Fraction of Pilots Suffer Suicidal Thoughts
16/12/2016 Duration: 01minIn an anonymous online survey, about 4 percent of surveyed pilots admitted to having suicidal thoughts within the last few weeks. Christopher Intagliata reports.
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Migrating Birds Prefer Lakefront Property
14/12/2016 Duration: 01minNight-flying migratory birds over water turn back to lakeshores at daybreak—meaning crowded shores along the water. Christopher Intagliata reports.
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Breast-Feeding Benefits Babies with Genetic Asthma Risk
13/12/2016 Duration: 02minInfants carrying genes that put them at increased risk for asthma had a 27 percent decrease in developing respiratory symptoms while being breast-fed. Erika Beras reports. Learn more about your ad choices. Visit megaphone.fm/adchoices