News stories on using pets in clinical trials to test veterinarian drugs, debunking the Piltdown Man once and for all, and deciding just how smart crows can be, with David Grimm. From the magazine It’s really difficult to figure out how old a free-living animal is. Maybe you can find growth rings in bone or other calcified body parts, but in sharks like the Greenland shark, no such hardened parts exist. Using two different radiocarbon dating approaches, Julius Neilsen and colleagues discovered that the giant Greenland shark may live as long as 400 years. Read the research. [Image: James Howard McGregor/Wikimedia Commons/Music: Jeffrey Cook]
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Wissenschaft & Technik
Science Magazine Podcast Folgen
Weekly podcasts from Science Magazine, the world's leading journal of original scientific research, global news, and commentary.
Folgen von Science Magazine Podcast
596 Folgen
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Folge vom 11.08.2016Podcast: 400-year-old sharks, busting a famous scientific hoax, and clinical trials in pets
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Folge vom 04.08.2016Podcast: Pollution hot spots in coastal waters, extreme bees, and diseased dinosNews stories on bees that live perilously close to the mouth of a volcano, diagnosing arthritis in dinosaur bones, and the evolution of the female orgasm, with David Grimm. From the magazine Rivers deliver water to the ocean but water is also discharged along the coast in a much more diffuse way. This “submarine groundwater discharge” carries dissolved chemicals out to sea. But the underground nature of these outflows makes them difficult to quantify. Audrey Sawyer talks with Sarah Crespi about the scale of this discharge and how it affects coastal waters surrounding the United States. [Image: Hilary Erenler/Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices
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Folge vom 28.07.2016Podcast: Saving wolves that aren’t really wolves, bird-human partnership, and our oldest common ancestorStories on birds that guide people to honey, genes left over from the last universal common ancestor, and what the nose knows about antibiotics, with Devi Shastri. The Endangered Species Act—a 1973 U.S. law designed to protect animals in the country from extinction—may need a fresh look. The focus on “species” is the problem. This has become especially clear when it comes to wolves—recent genetic information has led to government agencies moving to delist the grey wolf. Robert Wayne helps untangle the wolf family tree and talks us through how a better understanding of wolf genetics may trouble their protected status. [Image: Claire N. Spottiswoode/Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices
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Folge vom 21.07.2016Podcast: An omnipresent antimicrobial, a lichen ménage à trois, and tiny tide-induced tremorsStories on a lichen threesome, tremors caused by tides, and a theoretical way to inspect nuclear warheads without looking too closely at them, with Catherine Matacic. Despite concerns about antibiotic resistance, it seems like antimicrobials have crept into everything—from hand soap to toothpaste, and even fabrics. What does the ubiquitous presence of these compounds mean for our microbiomes? Alyson Yee talks with host Sarah Crespi about one antimicrobial in particular—triclosan—which has been partially banned in the European Union. [Image: T. Wheeler/Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices