Sinopse
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
Episódios
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Squid's Glowing Skin Patterns May Be Code
02/04/2020 Duração: 02minHumboldt squid can rapidly change the pigmentation and luminescence patterns on their skin by contracting and relaxing their muscles, possibly to communicate.
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Bird Fossil Shared Earth with T. rex
01/04/2020 Duração: 02minDating back 67 million years, this representative of the group of modern birds has been dubbed the Wonderchicken (which is not an April Fools’ Day joke).
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City Birds: Big-Brained with Few Offspring or Small-Brained with a Lot
31/03/2020 Duração: 04minTo make it in urban areas, birds tend to be either large-brained and able to produce few offspring or small-brained and extremely fertile. In natural habitats, most birds brains are of average size.
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Coyotes Eat Everything from Fruits to Cats
30/03/2020 Duração: 03minThe diets of coyotes vary widely, depending on whether they live in rural, suburban or urban environments—but pretty much anything is fair game.
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Tiny Wormlike Creature May Be Our Oldest Known Ancestor
29/03/2020 Duração: 02minThe bilateral organism crawled on the seafloor, taking in organic matter at one end and dumping the remains out the other some 555 million years ago.
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Science News Briefs from around the Planet
28/03/2020 Duração: 02minHere are a few brief reports about science and technology from around the planet, including one about the discovery of an intact chicken egg dating to Roman Britain.
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Help Researchers Track COVID-19
26/03/2020 Duração: 02minBy entering your health status, even if you’re feeling fine, at the Web site COVID Near You, you can help researchers develop a nationwide look at where hotspots of coronavirus are occurring.
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Sick Vampire Bats Restrict Grooming to Close Family
25/03/2020 Duração: 02minWhen vampire bats feel sick, they still engage in prosocial acts such as sharing food with nonrelatives. But they cut back on grooming anyone other than their closest kin.
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Exponential Infection Increases Are Deadly Serious
24/03/2020 Duração: 05minListen in as I use two calculators to track the difference in numbers of infections over a short period of time, depending on how many people each infected individual infects on average.
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Swamp Wallaby Reproduction Give Tribbles a Run
21/03/2020 Duração: 03minThey’re not born pregnant like tribbles, but swamp wallabies routinely get pregnant while pregnant.
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Ocean Plastic Smells Great to Sea Turtles
19/03/2020 Duração: 02minOcean plastic gets covered with algae and other marine organisms, making it smell delicious to sea turtles—with potentially deadly results.
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Ancient Clam Shell Reveals Shorter Day Length
17/03/2020 Duração: 03minThe growth layers in a 70-million-year-old clam shell indicate that a year back then had more than 370 days, with each day being only about 23.5 hours.
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Snapping Shrimp Make More Noise in Warmer Oceans
11/03/2020 Duração: 02minAs oceans heat up, the ubiquitous noise of snapping shrimp should increase, posing issues for other species and human seagoing ventures.
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Stress from Undersea Noise Interferes with Crab Camouflage
10/03/2020 Duração: 02minIn an example of how sea noise can harm species, exposed shore crabs changed camouflaging color sluggishly and were slower to flee from simulated predators.
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Indigenous Amazonians Managed Valuable Plant Life
04/03/2020 Duração: 02minStudies on very old vegetation in the Amazon basin show active management hundreds of years ago on species such as Brazil nut and cocoa trees.
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Computers Confirm Beethoven's Influence
03/03/2020 Duração: 02minBy breaking 900 classical piano compositions into musical chunks, researchers could track Ludwig van Beethoven’s influence on the composers who followed him. Christopher Intagliata reports.
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Science News Briefs from around the World
02/03/2020 Duração: 03minHere are a few brief reports about science and technology from around the world, including one from off the California coast about the first heart rate measurement done on a blue whale.
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Jet Altitude Changes Cut Climate-Changing Contrails
25/02/2020 Duração: 03minIncreasing or decreasing the altitude of aircraft by a few thousand feet to avoid thin layers of humidity could make a major reduction to contrails’ contribution to climate change.
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Thoroughbred Horses Are Increasingly Inbred
24/02/2020 Duração: 02minInbreeding in Thoroughbreds has increased significantly in the past 45 years, with the greatest rise occurring in the past 15 or so of them.
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Pablo Escobar's Hippos Could Endanger Colombian Ecology
20/02/2020 Duração: 04minHippos that escaped from drug kingpin Pablo Escobar’s private zoo are reproducing in the wild. And with increasing numbers, they could threaten ecosystems.