Science Signaling Podcast

Using robots to study evolution, the last installment of our series of books on a future to look forward to, and did reintroducing wolves really restore an ecosystem? First up this week, a new study of an iconic ecosystem doesn’t support the “landscape of fear” concept. This is the idea that bringing back apex predators has a huge impact on the behavior of their prey, eventually altering the rest of the ecosystem. Host Sarah Crespi talks with Contributing Correspondent Virginia Morell about the findings.   Next, using bioinspired robotics to explore deep time. Michael Ishida, a postdoctoral researcher in the Bio-Inspired Robotics Lab at the University of Cambridge, talks about studying key moments in evolutionary history, such as the transition from water to land by creating robotic versions of extinct creatures.   Finally in the last in our series of books on an optimistic future, books host Angela Saini talks with Ruha Benjamin, a professor of African American studies at Princeton University and recently na

First up this week, host Sarah Crespi talks to Jon Chu, a presidential young professor in international affairs at the Lee Kuan Yew School of Public Policy at the National University of Singapore, about how people around the world define democracy. Does democracy mean elections, freedom of the press, social mobility, or something else? Chu’s team found there was common ground across six countries. In many places with backsliding democracies, leaders may be tempted to change the definition of democracy to their own ends—this study suggests the people they rule won’t be fooled.   Next, when staying at home meant choosing between chemistry and basketball, Lena Svanholm sought an opportunity in the U.S. to pursue both. She joins producer Kevin McLean to discuss her next steps in balancing dual careers in science and professional sports.   In a sponsored segment from the Science/AAAS Custom Publishing Office, Erika Berg, director and senior editor of Custom Publishing, interviews Michal Elovitz about gaps in women

First up this week, we celebrate 20 years of graphene—from discovery, to hype, and now reality as it finally finds its place in technology and science. Science journalist Mark Peplow joins host Sarah Crespi to discuss graphene’s bumpy journey.   Next, producer Meagan Cantwell talks with Seth Darling, chief science and technology officer for the Advanced Energy Technologies Directorate at Argonne National Laboratory, about two new ways to harvest lithium from water. One approach harnesses sunlight to pull water up through a membrane and collect lithium, whereas the other uses an electrochemical cell to selectively suck lithium up. Finding efficient ways to extract lithium from sources where it’s lower in concentration, such as the ocean, will be crucial as demand increases.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Meagan Cantwell; Mark Peplow   Episode page: https://www.science.org/doi/10.1126/science.zn17zjt Learn more about your ad choices

First up this week, online editor David Grimm joins host Sarah Crespi to talk about how cats think about their own bodies. Do cats think of themselves as a liquid, as much the internet appears to believe? New experiments suggest they may—but only in one dimension.   Next, freelance producer Ariana Remmel is joined by Ted Schultz, a research entomologist at the Smithsonian Institution, to discuss the evolution of ant-fungus farming. It turns out, ants and fungus got together when the earth was going through some really tough times around 66 million years ago.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi; Ariana Remmel; David Grimm Episode page: https://www.science.org/doi/10.1126/science.zlav1o2 Learn more about your ad choices. Visit megaphone.fm/adchoices

The gene variant APOE4 is finally giving up some of its secrets, how putting dead trees underground could make carbon sequestration cheap and scalable, and the latest in our series of books on an optimistic future   First up this week, Staff Writer and Editor Jocelyn Kaiser joins host Sarah Crespi to discuss APOE4, a gene linked with a higher risk of Alzheimer’s disease. They talk about new research into why APOE4 might be a good target for preventing or treating this dreaded neurodegenerative disease.   Next, Ning Zeng, a professor in the Department of Atmospheric & Oceanic Science and at the Earth System Science Interdisciplinary Center at the University of Maryland, joins the show to discuss an unusual approach to carbon sequestration and a very old piece of wood. He talks about how an unearthed 3000-year-old log that has held on to most of its carbon is pretty good proof that we can efficiently put carbon underground at low cost by burying trees.   Finally, we have the latest in our series of books on a

First up this week, a preview of a NASA mission to Jupiter’s icy moon Europa. Science journalist Robin Andrews joins host Sarah Crespi to talk about the Clipper mission and what it could reveal about the habitability of the world that lies beneath Europa’s chaotic, icy surface.   Next, what does it feel like to be a rat? This week Science has a special issue on rats, focusing on their contributions to science, their history as invasives and disease carriers, and more. But Inbal Ben-Ami Bartal, a professor in the School of Psychological Sciences and the Sagol School of Neuroscience at Tel Aviv University, is here to talk about their capacity for empathy and other positive emotions.   In a sponsored segment from the Science/AAAS Custom Publishing Office, Erika Berg, director and senior editor of custom publishing, interviews University of Manchester professor Sarah Haigh about the past, present, and future of graphene. This segment is sponsored by Zeiss.   This week’s episode was produced with help from Podigy.

Why don’t we know what is happening with hail? It’s extremely destructive and costs billions of dollars in property damage every year. We aren’t great at predicting hailstorms and don’t know much about how climate change will affect them, but scientists are working to change that. News Intern Hannah Richter joins host Sarah Crespi to discuss deploying new technologies in this long-neglected area of research. Next on the show, ultrasound—it’s not just for looking inside the body anymore. Meaghan O’Reilly is a senior scientist in physical sciences at the Sunnybrook Research Institute, an associate professor of medical biophysics at the University of Toronto, and is the Canada Research Chair in biomedical ultrasound. She talks about how researchers are using focused sound waves to disrupt tumors, change the permeability of the blood-brain barrier, stimulate the immune system, and more. This week’s episode was produced with help from Podigy. About the Science Podcast Authors: Sarah Crespi; Hannah Richter Episode

The latest in our series on global equity in science, and how better memory helps chickadees live longer  First up this week, as part of our series on global equity in science, Contributing Correspondent Vaishnavi Chandrashekhar joins host Sarah Crespi to talk about an initiative in India intended to increase education about early “Indian knowledge systems” amid concerns about homogenization and misinformation. Next, producer Kevin McLean climbs a mountain to visit a test bed for intelligence. He met up with Joe Welklin and Vladimir Pravosudov of the University of Nevada, Reno to talk about their research on how memory helps mountain chickadees survive. This week’s episode was produced with help from Podigy. About the Science Podcast Authors: Sarah Crespi; Kevin McLean; Vaishnavi Chandrashekhar   Episode page: https://www.science.org/doi/10.1126/science.zbfmymg Learn more about your ad choices. Visit megaphone.fm/adchoices

First up this week on the podcast, the latest conservation news with Staff Writer Erik Stokstad. Stokstad and host Sarah Crespi talk about the fate of snow crabs in the Bering Sea, how much we have been overestimating fishing stocks worldwide, and invasive snakes in Guam that bite off more than they can chew.   Next, a fungus takes the wheel. Anand Mishra, a research associate in the department of mechanical and aerospace engineering at Cornell University, discusses a method of integrating electronics with fungal cells in a biohybrid robot. By using the hardy cells from a mushroom instead of the delicate cells of an animal, Mishra and colleagues hope to durably introduce the sensing and signaling capacity of these living organisms into robots.   Finally, the fourth installment of our six-part series on books that look to an optimistic future. This month, host Angela Saini talks with science writer Akshat Rathi about how capitalism might just save us from climate change and his book Climate Capitalism: Winning

First up this week on the show, uncounted kilometers of fences are strung across the globe. Researchers know they interfere with wildlife migrations and sometimes make finding food and safety difficult for animals. But they don’t know where all these fences are. Freelancer science journalist Christine Peterson joins host Sarah Crespi to discuss how artificial intelligence and aerial photos could help create fence inventories and eventually reopen spaces for native species.   Next, Azizi Seixas, interim chair of the University of Miami Miller School of Medicine’s department of informatics and health data science and a professor in the department of psychiatry and behavioral sciences, discusses his review on decentralized randomized trials. Randomized, controlled trials based in a research center or centers have long been the gold standard for determining the effectiveness of a medical intervention. This week on the podcast, Seixas argues that distributed research designs with home-based measurements and report

First up this week, Deputy News Editors Elizabeth Culotta and Shraddha Chakradhar join host Sarah Crespi to talk about the launch of a new series highlighting the latest in postcolonial science. They cover how researchers around the world, but especially in the Global South, are reckoning with colonial legacies and what is in store for the rest of the series.   Next, producer Meagan Cantwell talks with Mario Fischer-Gödde, a research scientist at the University of Cologne about the origins of the giant asteroid thought to have killed off the dinosaurs 66 million years ago.   This week’s episode was produced with help from Podigy. About the Science Podcast  Authors: Sarah Crespi, Elizabeth Culotta, Shraddha Chakradhar, Meagan Cantwell Episode page: https://www.science.org/doi/10.1126/science.zjugpvu About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

Researchers debate if humidity makes heat more deadly, and finding excess diabetes cases in Ukrainian people that were born right after the 1930s famine First up this week, which is worse: the heat or the humidity? Staff writer Meredith Wadman joins host Sarah Crespi to talk about conflicting reports on the risk of increased mortality when humidity compounds heat, and how to resolve the debate in the field.     Next, LH Lumey, a professor of epidemiology at the Columbia University Medical Center, discusses what the catastrophe of a famine can teach us about the importance of maternal and fetal health for the long term. His work focuses on records of a 1930s Ukrainian famine painstakingly reconstructed by Ukrainian demographers after being obscured by the former Soviet Union. The famine records combined with newer data show that babies gestated during famine are more likely to acquire type 2 diabetes later in life.    This week’s episode was produced with help from Podigy.   About the Science Podcast   Author

First up this week, we hear about caves on the Moon, a shake-up at Pompeii, and the iron-lined teeth of the Komodo dragon. Reporter Phie Jacobs joins host Sarah Crespi to discuss these news stories and more from our daily newsletter, ScienceAdviser.   Next on the show, electron microscopes allow us to view a world inaccessible to light—at incredible resolution and tiny scales. But bombarding samples with a beam of electrons has downsides. The high-energy electrons used for visualizing minute structures can cause damage to certain materials. Jonathan Peters, a research fellow in the School of Physics at Trinity College Dublin, joins the podcast to talk about a new approach that protects samples while keeping resolution sharp.    This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Sarah Crespi, Phie Jacobs,   Episode page: https://www.science.org/doi/10.1126/science.zeecyfw Learn more about your ad choices. Visit megaphone.fm/adchoices

Tackling air pollution—indoors and outdoors, how burned-up satellites in the atmosphere could destroy ozone, and the latest in our series of books on a future to look forward to First up this week, Science Senior Editor Michael Funk joins host Sarah Crespi to talk about the magazine’s special issue on air pollution. The two discuss the broad scope of air pollution, from home cooking to transmissible disease.   Next, how burned-up satellites may cause pollution problems as megaconstellations take to the skies. Staff Writer Daniel Clery talks about how metals from deorbiting spacecrafts might change the chemistry of the upper atmosphere.   Finally, books host Angela Saini is joined by author Daniela Rus, a roboticist and professor of electrical engineering and computer science at the Massachusetts Institute of Technology. They discuss Rus’s book The Heart and the Chip: Our Bright Future with Robots for this year’s books series that takes an optimistic look at the future.   This week’s episode was produced with

First up this week, Staff Writer Adrian Cho talks with host Sarah Crespi about a fusion company that isn’t aiming for net energy. Instead, it’s looking to sell off the high-energy neutrons from its fusion reactors for different purposes, such as imaging machine parts and generating medical isotopes. In the long run, the company hopes to use money from these neutron-based enterprises for bigger, more energetic reactors that may someday make fusion energy. Next, we hear from Tian Du, a Ph.D. candidate in the Dr John and Anne Chong Lab for Functional Genomics at the University of Sydney. She talks about finding antivenom treatments by screening all the genes in the human genome. Her Science Translational Medicine paper focuses on a strong candidate for treating spitting cobra bites, but the technique may prove useful for many other venomous animal bites and stings, from jellyfish to spiders. This week’s episode was produced with help from Podigy. About the Science Podcast Authors: Sarah Crespi, Adrian Cho Learn

Rodenticides are building up inside unintended targets, including birds, mammals, and insects; and bringing bioacoustics and artificial intelligence together for ecology First up this week, producer Kevin McLean and freelance science journalist Dina Fine Maron discuss the history of rodent control and how rat poisons are making their way into our ecosystem.   Next on the episode, host Sarah Crespi talks with Jeppe Rasmussen, a postdoctoral fellow in the behavior ecology group at the University of Copenhagen, about why researchers are training artificial intelligence to listen for seals, frogs, and whales.   Additional sound in this segment (some played, some mentioned):   ·      Monk seal noises care of Jeppe Rasmussen ·      Frog and crickets from Pond5  ·      Lyrebird sounds (Youtube link) ·      Cod fish sounds (Fishbase link)   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Kevin McLean, Sarah Crespi, Dina Fine Maron    Episode page: https://www.science.or

First up this week, guest host Kevin McLean talks to freelance writer Andrew Zaleski about recent advancements in the world of synthetic blood. They discuss some of the failed attempts over the past century that led many to abandon the cause altogether, and a promising new option in the works called ErythroMer that is both shelf stable and can work on any blood type.   Next on the episode, producer Zakiya Whatley talks to Aaron Weimann from the University of Cambridge about the evolutionary history of the deadly bacterial pathogen Pseudomonas aeruginosa. They discuss how more than a century’s worth of samples from all over the world contributed to new insights on the emergence and expansion of the pathogen known for its ability to develop antimicrobial resistance.   This week’s episode was produced with help from Podigy.   About the Science Podcast   Authors: Kevin McLean, Andrew Zaleski, Zakiya Whatley   Episode Page: https://www.science.org/doi/10.1126/science.z1jhbqi   About the Science Podcast: https://ww

Guest host Meagan Cantwell talks to Staff Writer Erik Stokstad about a new weapon against crop-destroying beetles. By making pesticides using RNA, farmers can target pests and their close relatives, leaving other creatures unharmed.  Next, freelance producer Katherine Irving talks to hydrologist Craig Brinkerhoff about a recent analysis of ephemeral streams—which are only around temporarily—throughout the United States. Despite their fleeting presence, Brinkerhoff and his colleagues found these streams play a major role in keeping rivers flowing and clean. Brinkerhoff is currently a postdoctoral fellow at Yale University, and completed this work as a Ph.D. student at the University of Massachusetts Amherst.   Finally, the next segment in our books series on a future to look forward to. Books host Angela Saini talks with author Rachel O’Dwyer about her recent book Tokens: The Future of Money in the Age of the Platform. They’ll discuss new and old ideas of currency, and what it means to have our identities tied

On this week’s show: Scientists are expanding the hunt for habitable exoplanets to bigger worlds, and why improvements in air quality have stagnated in Los Angeles, especially during summer, despite cleaner cars and increased regulations Staff Writer Daniel Clery joins producer Meagan Cantwell to talk through the major contenders for habitable exoplanets—from Earth-like rocky planets to water worlds. Preliminary results from two rocky exoplanets have some researchers concerned about whether they will be able to detect atmospheres around planets orbiting turbulent stars.   Next, producer Ariana Remmel talks with Eva Pfannerstill, an atmospheric chemist at the Jülich Research Center, about how volatile organic compounds, mostly from plants, are causing an increase in air pollution during hot days in Los Angeles.    This week’s episode was produced with help from Podigy. This week’s episode was produced with help from Podigy. About the Science Podcast   Authors: Daniel Clery; Meagan Cantwell; Arianna Remmel  

On this week’s show: Companion animals such as dogs occupy the same environment we do, which can make them good sentinels for human health, and DNA gives clues to ancient Maya rituals and malaria’s global spread Contributing Correspondent Andrew Curry joins host Sarah Crespi to discuss two very different studies that used DNA to dig into our past. One study reveals details of child sacrifices in an ancient Maya city. The other story is on the surprising historical reach of malaria, from Belgium to the Himalayas to South America.   Next on the show, using our canine companions to track human health. Courtney Sexton, a postdoctoral research fellow in the Department of Population Health Sciences at the Virginia-Maryland College of Veterinary Medicine, talks about what we can learn from these furry friends that tend to be exposed to many of the same things we are such as pesticides and cleaning chemicals.   Finally, in a sponsored segment from the Science/AAAS Custom Publishing Office, Jackie Oberst, associate e