Science Magazine Podcast Folgen

What does it mean that we have so many more seamounts than previously thought, and finding REM sleep in seals   First up on the show this week: so many seamounts. Staff News Writer Paul Voosen joins host Sarah Crespi to discuss a study that mapped about 17,000 never-before-seen underwater volcanoes. They talk about how these new submarine landforms will influence conservation efforts and our understanding of ocean circulation.    Next up, how do mammals that spend 90% of their time in the water, get any sleep? Jessica Kendall-Bar, the Schmidt AI in Science postdoctoral fellow at the Scripps Institution of Oceanography at the University of California, San Diego, is here to talk about her work exploring the sleep of elephant seals by capturing their brain waves as they dive deep to slumber.   Finally, in a sponsored segment from Science/AAAS Custom Publishing Office, Jackie Oberst, assistant editor for the Custom Publishing office, interviews Friedman Brain Institute Director Eric Nestler and Director of Drug Discovery Paul Kenny, two experts on addiction from the Icahn School of Medicine at Mount Sinai. This segment is sponsored by the Icahn School of Medicine at Mount Sinai.   This week’s episode was produced with help from Podigy.   [Image: Rob Oo/Flickr; Music: Jeffrey Cook]   [alt: two female elephant seals looking at the camera with podcast overlay]   Authors: Sarah Crespi; Paul Voosen   Episode page: https://www.science.org/doi/10.1126/science.adi3256   About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

Anchoring radiocarbon dates to cosmic events, why hibernating bears don't get blood clots, and kicking off a book series on sex, gender, and science   First up this week, upping the precision of radiocarbon dating by linking cosmic rays to isotopes in wood. Producer Meagan Cantwell talks with Online News Editor Michael Price about how spikes in cosmic rays—called Miyake events—are helping archaeologists peg the age of wooden artifacts to a year rather than a decade or century.   Next on the show, we have a segment on why bears can safely sleep during hibernation without worrying about getting clots in their blood. Unlike bears, when people spend too much time immobilized, such as sitting for a long time on a flight, we risk getting deep vein thrombosis—or a blood clot. Johannes Müller-Reif of the Max Planck Institute of Biochemistry talks with host Sarah Crespi about what we can learn from bears about how and why our bodies decide to make these clots and what we can do to prevent them.   Stay tuned for an introduction to our new six-part series on books exploring science, sex, and gender. Guest host Angela Saini talks with scholar Anne Fausto-Sterling about the books in this year's lineup and how they were selected.   We’ve been nominated for a Webby! Please support the show and vote for us by 20 April.   This week’s episode was produced with help from Podigy.   About the Science Podcast   [Image: Thomas Zsebok/iStock/Getty; Music: Jeffrey Cook]   [alt: brown bear lying in a cave with podcast overlay]   Authors: Sarah Crespi; Meagan Cantwell; Mike Price; Angela Saini   Episode page: https://www.science.org/doi/10.1126/science.adi2236 Learn more about your ad choices. Visit megaphone.fm/adchoices

Why some countries, such as China, vaccinate flocks against bird flu but others don’t, and male ants that are always chimeras   First up this week, highly pathogenic avian influenza is spreading to domestic flocks around the globe from migrating birds. Why don’t many countries vaccinate their bird herds when finding one case can mean massive culls? Staff News Writer Jon Cohen joins host Sarah Crespi to discuss the push and pull of economics, politics, and science at play in vaccinating poultry against bird flu.   Next up, a crazy method of reproduction in the yellow crazy ants (Anoplolepis gracilipes). Hugo Darras, an assistant professor in the Institute of Organismic and Molecular Evolution at Johannes Gutenberg University, talks about how males of this species are always chimeras—which means their body is composed of two different cell lines, one from each parent. Read a related perspective.    This week’s episode was produced with help from Podigy.   About the Science Podcast   [Image: The Wild Martin; Music: Jeffrey Cook]   [alt: Queen and worker yellow crazy ants with podcast overlay]   Authors: Sarah Crespi; Jon Cohen   Episode page: https://www.science.org/doi/10.1126/science.adi0665 Learn more about your ad choices. Visit megaphone.fm/adchoices