PNAS Science Sessions
- Folgen
- 426
- Erscheint
- alle zwei Wochen
- Letzte Folge
- 2. Nov. 2026
Über den Podcast
Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us.
Folgen 426
Reconstructing a Jurassic soundscape
Reconstructing Jurassic insect sounds Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Reconstructing Jurassic insect sounds
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Fernando Montealegre-Zapata and Daniel Robert reconstruct the sounds of Jurassic insects.
In this episode, we cover: •[00:00] Introduction. •[00:55] Bioacoustician Fernando Montealegre-Zapata and sensory biologist Daniel Robert recount what was known before this study about the sounds produced by long-extinct animals. •[02:18] They tell us about the kinds of fossilized body parts they were able to study and how they produce sounds. •[03:45] Montealegre-Zapata and Robert talk about the tools they used to recreate the sounds these fossil animals produced. •[05:01] They describe pure tones, and why it's important to know that Jurassic insects produced them. •[06:22] Robert explains why it's important that some species could produce ultrasonic tones, and what that means for the evolution of later ultrasonic species like bats. •[07:13] Montealegre-Zapata and Robert recount other results about the diversity of sounds Jurassic insects produced. •[08:38] They list the caveats or limitations of the study. •[10:10] Conclusion.
About Our Guests:
Fernando Montealegre-Zapata Professor University of Lincoln
Daniel Robert Professor University of Bristol
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2615107123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Countervailing viper venoms
Using snakes' own defenses against venom Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Using snakes' own defenses against venom
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Sean Carroll and Fiona Ukken describe how to use snakes' own proteins as an antivenom.
In this episode, we cover: •[00:00] Introduction. •[00:54] Evolutionary biologist Sean Carroll introduces the problem of snakebites and the availability of effective antivenoms. •[02:14] Carroll and geneticist Fional Ukken tell how they came to study protective FETUA proteins. •[03:48] Carroll and Ukken explain what they learned about the effectiveness of combinations of FETUA proteins. •[05:11] Carroll describes the broad the protection the proteins afford across species. •[06:33] He explores the implications for snakebite treatment. •[07:25] Carroll and Ukken list the caveats and limitations of the study. •[09:16] Conclusion.
About Our Guests:
Sean Carroll Professor, HHMI Investigator University of Maryland
Fiona Ukken Senior Researcher University of Maryland
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2612168123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Detecting blue whales using fiber optic cables
Tracking whales with acoustic sensing Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Tracking whales with acoustic sensing
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Martin Landrø describes how to track whale movements with undersea fiber optic cables.
In this episode, we cover: •[00:00] Introduction. •[01:01] Underwater acoustician Martin Landrø explains why it's important to track whale movement, and why it's difficult. •[01:45] Landrø explains the methods used to detect whales previously. •[03:01] He introduces distributed acoustic sensing. •[04:14] Landrø tells the story of how they used distributed acoustic sensing to detect whale movement. •[06:11] He talks about the results and what the method was able to detect. •[07:30] He explores possibilities for using this method in the future. •[08:38] He lists the caveats and limitations of the study. •[09:25] Conclusion.
About Our Guest:
Martin Landrø Professor Norwegian University of Science and Technology
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2603077123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Environmental hazards near schools
Schools' proximities to hazardous materials sites Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
Schools' proximities to hazardous materials sites
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Matthew Kraft maps the proximities of schools to hazardous materials sites.
In this episode, we cover: •[00:00] Introduction. •[00:59] Education and economics researcher Matthew Kraft recounts the background of the study. •[02:11] He introduces the hazardous waste sites included in the study. •[03:50] Kraft talks about what surprised him about mapping results. •[05:08] He lists the risks these sites might pose to the millions of children and thousands of employees at these schools. •[06:09] Kraft lists the groups of students disproportionately potentially exposed to hazardous waste sites. •[07:00] He talks about the takeaways for policymakers. •[08:03] He lists the caveats and limitations of the study. •[10:21] Conclusion.
About Our Guest:
Matthew Kraft Professor Brown University
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2605971123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Economic toll of declining MMR vaccination
Economic costs of measles outbreaks Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Economic costs of measles outbreaks
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Alison Galvani explains the costs of waning measles vaccination rates.
In this episode, we cover: •[00:00] Introduction. •[01:12] Epidemiologist Alison Galvani introduces the MMR vaccine and describes its efficacy. •[02:23] Galvani recounts the changes in MMR vaccination rates in recent years. •[03:56] She describes how the researchers modeled the economic impacts of measles outbreaks. •[05:49] Galvani talks about what the economic impacts look like in everyday life. •[06:39] She talks about the findings regarding the costs of measles outbreaks in 2025. •[07:06] Galvani enumerates the costs of a percentage decrease in vaccination rates. •[08:06] She lists the takeaways from the study, including the disproportionate societal effects of a small decrease in vaccination rates. •[08:58] She lists the caveats and limitations of the study. •[10:13] Conclusion.
About Our Guest:
Alison Galvani Director, Center of Infectious Disease Modeling and Analysis Yale School of Public Health
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2605971123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Geochemical record of subduction
Evidence of early plate tectonics Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Evidence of early plate tectonics
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Brad Peters explores what we can learn from the journey of sediments from the early Earth through the rock cycle.
In this episode, we cover: •[00:00] Introduction. •[01:04] Geochemist Brad Peters tells us about the Marquesas Archipelago and why is it a place of interest for geologists. •[02:42] He recounts evidence suggesting that one component of the Marquesas lavas was recycled sediment from the early Earth. •[04:59] Peters walks us through the likely journey of this sediment from its origins to its eruption on the Marquesas Archipelago. •[06:24] He explains what this lava tells us about the tectonic processes that were active four billion years ago. •[07:43] Peters summarizes how this result is different than what we previously thought about the inception of plate tectonics. •[08:19] He talks about what the results mean for the story of the early Earth. •[09:13] He lists the caveats and limitations of the study. •[10:09] Conclusion.
About Our Guest:
Brad Peters Postdoctoral researcher ETH Zurich
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2500506123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Origins of bread wheat
Domestication of wheat Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn …
Shownotes
Domestication of wheat
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, David Lordkipanidze recounts archaeological findings from Georgia expanding the history of bread wheat.
In this episode, we cover: •[00:00] Introduction. •[00:51] Archaeologist and paleobotanist David Lordkipanidze tells about the archaeological sites where wheat samples were found. •[02:53] He talks about methods for identifying plant grains among archeological artifacts. •[04:49] Lordkipanidze explains the significance of finding bread wheat and goat grass grains together. •[06:45] He talks about how the findings change the origin story of bread wheat. •[08:28] He lists the caveats and limitations of the study. •[09:24] Conclusion.
About Our Guest:
David Lordkipanidze Director Georgia National Museum
View related content here: https://www.pnas.org/doi/10.1073/pnas.2537697123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Using AI to predict the weather
Using AI to predict the weather Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Using AI to predict the weather
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers discuss advances in AI-enabled weather forecasting.
In this episode, we cover: •[00:00] Introduction •[01:12] Jeffrey Shrader explains what 48 expert forecasters had to say about how weather predictions might further improve through 2100, including the potential role of AI. •[03:43] Ignacio Lopez-Gomez explains how he used generative AI to downscale large-scale earth system models into finer-scale regional climate projections. •[05:35] Xiaofeng Li explains how he used a machine learning model to forecast whether tropical cyclones will rapidly intensify. •[07:40] Hui Su explains what nowcasting is and how her deep diffusion model works. •[09:52] Pedram Hassanzadeh explains what grey swans are and why they may be challenging for AI to predict. •[10:47] Qiang Sun explains how he and his colleagues tested the ability of AI to predict gray swans. •[12:28] Final thoughts and conclusion.
About Our Guests: Jeffrey Shrader Associate Professor of International and Public Affairs Columbia University
Ignacio Lopez-Gomez Research Scientist Google
Xiaofeng Li Research Scientist Institute of Oceanology, Chinese Academy of Sciences
Hui Su Chair Professor Hong Kong University of Science and Technology
Pedram Hassanzadeh Associate Professor University of Chicago
Qiang Sun Research Scientist University of Chicago
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2523372123 https://www.pnas.org/doi/full/10.1073/pnas.2420288122 https://www.pnas.org/doi/full/10.1073/pnas.2415501122 https://www.pnas.org/doi/full/10.1073/pnas.2517520122 https://www.pnas.org/doi/full/10.1073/pnas.2420914122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up the PNAS Highlights newsletter
Brain function after cryopreservation
Cryopreservation of brain tissue structures Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
Cryopreservation of brain tissue structures
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Alexander German explains how to cryopreserve brain tissue through vitrification.
In this episode, we cover: •[00:00] Introduction. •[01:14] Physician-scientist Alexander German introduces the problems with traditional cryopreservation methods. •[02:22] German explains why we cryopreserve tissue. •[03:23] He tells about vitrification and why it's different than traditional cryopreservation. •[04:13] German explains why osmotic stress is a concern in cryopreservation. •[04:51] He talks about how the protocol minimizes damage to brain structures and tissues. •[06:26] He recounts the tests they performed to evaluate the preservation and function of the vitrified tissues. •[07:03] German describes the usefulness of vitrification. •[08:48] He lists the caveats and limitations of the study. •[10:03] Conclusion.
About Our Guest:
Alexander German Resident Universität Erlangen-Nürnberg
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2516848123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Paleoecology of Doggerland
The lost forests of Doggerland Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
The lost forests of Doggerland
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Robin Allaby explores the paleoecology of the submerged area known as Doggerland.
In this episode, we cover: •[00:00] Introduction. •[01:10] Evolutionary biologist Robin Allaby introduces the location of Doggerland and history of its exploration. •[02:58] He introduces sedimentary DNA, including how it can be used to reconstruct paleoecology. •[03:43] Allaby describes the methods of the study. •[05:18] He introduces the primary findings about the plant and animal life of Doggerland. •[06:14] He describes the surprising find of Pterocarya in Doggerland. •[08:07] Allaby discusses the habitability of Doggerland for Mesolithic societies. •[09:38] He lists the caveats and limitations of the study. •[10:13] Conclusion.
About Our Guest:
Robin Allaby Professor University of Warwick
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2508402123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
AI in scholarly publishing
Generative AI and scientific journals Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Generative AI and scientific journals
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Yi Bu explores how generative AI has changed academic publishing.
In this episode, we cover: •[00:00] Introduction. •[00:50] Computational social scientist Yi Bu tells about the policies academic journals have introduced to address generative AI. •[02:17] Bu describes the dataset he analyzed and his findings regarding journals' policies. •[04:07] He answers the question: Did journal policies have any effect on AI usage? •[05:39] Bu talks about how the rate of AI disclosure compares with estimates of probable AI use. •[06:53] He explains the takeaway for journal editors and the scientific community at large. •[07:27] He lists the caveats and limitations of the study. •[10:11] Conclusion.
About Our Guest:
Yi Bu Assistant Professor Peking University
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2526734123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Genomic history of the Golden Horde
Genomics of the Golden Horde Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
Genomics of the Golden Horde
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Ayken Askapuli explains genomic insights into the ancestors and descendants of the Golden Horde.
In this episode, we cover: •[00:00] Introduction. •[00:56] Population geneticist Ayken Askapuli introduces the Golden Horde. •[02:01] He describes the individuals in the mausoleums whose DNA the team sampled. •[04:11] Askapuli explains findings about the modern populations the Golden Horde individuals were related to. •[05:08] He then explains findings about the Y chromosome characteristics of the Golden Horde individuals. •[06:14] Askapuli talks about what the results say about the ancestry of the Golden Horde. •[06:48] He describes how the results aid understanding of population genetics in central Eurasia. •[08:10] He lists the caveats and limitations of the study. •[09:53] Conclusion.
About Our Guest:
Ayken Askapuli PhD candidate University of Wisconsin-Madison
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2531003123
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Concrete and carbon uptake
How much carbon dioxide concrete can absorb Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
How much carbon dioxide concrete can absorb
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Hessam Azarijafari explains the extent to which concrete can absorb carbon dioxide over its lifecycle.
In this episode, we cover: •[00:00] Introduction. •[00:56] Construction engineer Hessam Azarijafari introduces us to the recipe for concrete. •[01:41] He explains how concrete absorbs carbon dioxide throughout its lifespan, and why this absorption is important. •[02:52] Azarijafari talks about the background of the study. •[03:45] He describes the model built for the study and the data source. •[05:59] Azarijafari tells the study's results, including variation in absorption across sectors and between the US and Mexico. •[07:41] He compares this analysis with previous estimates of concrete carbon absorption. •[08:25] He explains the takeaways from this study for policymakers and the concrete industry. •[09:36] He lists the caveats and limitations of the study. •[10:19] Conclusion.
About Our Guest:
Hessam Azarijafari Research Scientist Massachusetts Institute of Technology
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2515116122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Reconstructing extinct species' sense of smell
Determining how well extinct animals could smell Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
Determining how well extinct animals could smell
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Quentin Martinez describes a reconstruction of olfactory capabilities in extinct mammals.
In this episode, we cover: •[00:00] Introduction •[01:14] Evolutionary biologist Quentin Martinez tell why we want to reconstruct olfaction in extinct animals. •[02:35] He introduces the olfactory bulb endocast, or space within the skull that contained the olfactory bulb, and explains why it's important in evaluating olfaction in extinct animals. •[04:24] Martinez talks about studying the genomics of chemoreceptor genes, in addition to the bony structure of the olfactory bulb endocast. •[05:23] He tells about the results of the study. •[07:46] Martinez lists possible insights from reconstructing extinct animals' olfaction. •[08:53] He lists the caveats and limitations of the study. •[10:16] Conclusion.
About Our Guest:
Quentin Martinez Postdoctoral researcher Natural History Museum, Stuttgart, Germany
View related content here: https://www.pnas.org/doi/10.1073/pnas.2510575122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
The hidden costs of AI
Hidden sustainability costs of AI Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Hidden sustainability costs of AI
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers describe the sustainability impact of AI data centers.
In this episode, we cover: •[00:00] Introduction •[01:20] Bronis de Supinski describes how the energy demands of AI data centers have increased in recent years and why improvements in data center energy efficiency will not necessarily reduce total energy expenditures •[03:08] Eric Masanet explains the difficulty of tracking and projecting the energy usage of AI data centers. •[05:12] Shaolei Ren describes the water usage and air pollution associated with AI data centers. •[07:30] Tevfik Kosar explains how AI might be leveraged as a tool to help address climate change and sustainability challenges. •[09:00] Final thoughts and conclusion.
About Our Guests: Bronis de Supinski Chief Technology Officer Lawrence Livermore National Laboratory
Eric Masanet Professor University of California Santa Barbara Lawrence Berkeley National Laboratory
Shaolei Ren Associate Professor University of California Riverside
Tevfik Kosar Professor University at Buffalo
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
How mosquitoes time their bites
Molecular regulation of mosquito biting timing Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
Molecular regulation of mosquito biting timing
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Laura Duvall introduces a potential pathway for disrupting the biting behavior of mosquitoes.
In this episode, we cover: •[00:00] Introduction •[00:57] Mosquito neuroscientist Laura Duvall introduces us to the normal biting behavior of mosquitoes. •[02:46] She tells why the biting behavior of the Aedes aegypti mosquito is of particular interest. •[03:24] Duvall describes findings regarding how mosquitoes' responses to CO2 vary over times of day. •[05:37] She introduces the PDF peptide that might be regulating timing of biting behavior and explains how losing that peptide changed mosquitoes' behavior. •[08:07] Duvall talks about the takeaways from the study for control of mosquito-borne illnesses. •[08:53] She lists the caveats and limitations of the study. •[09:26] Conclusion.
About Our Guest:
Laura Duvall Assistant Professor Columbia University
View related content here: https://www.pnas.org/doi/10.1073/pnas.2520826122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Impact of flu vaccines on hospital burden
How well flu vaccines protect public health Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
How well flu vaccines protect public health
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Lauren Meyers explains what the 2022-2023 influenza season taught us about the effectiveness of flu vaccines.
In this episode, we cover: •[00:00] Introduction •[01:16] Computational epidemiologist Lauren Meyers introduces the health and hospitalization burden of seasonal influenza. •[01:47] She defines vaccine effectiveness. •[02:37] Meyers describes the features of the 2022-2023 flu season. •[04:05] She describes how the researchers estimated the hospitalizations prevented by vaccination. •[05:11] Meyers tells how vaccination of young adults protected adults over 65 years of age. •[06:56] She describes the takeaways of the study for future flu seasons. •[08:08] Meyers lists the caveats and limitations of the study. •[09:49] Conclusion.
About Our Guest:
Lauren Meyers Professor University of Texas at Austin
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2505175122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Secrets of Earth's climate in six-million-year-old ice
Air quality and pet health Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
Air quality and pet health
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Sarah Shackleton shares climate lessons learned from 6 million-year-old ice.
In this episode, we cover: •[00:00] Introduction •[01:02] Paleoclimate and ice scientist Sarah Shackleton introduces the information researchers can glean from ice cores. •[02:02] She recounts the age extent of previous ice cores. •[03:03] Shackleton describes the Allan Hills Ice Area. •[04:35] She describes the method for ascertaining the age of air in an ice core. •[05:49] She explains the results of the study and the insights into the climate in Antarctica over the last 6 million years. •[06:32] Shackleton talks about the ice at the base of the core, and the research implications of the study. •[08:13] Caveats and limitations of the study. •[09:11] Conclusion.
About Our Guest:
Sarah Shackleton Assistant scientist Woods Hole Oceanographic Institution
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2502681122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
China, ascendent
China's science leadership Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
China's science leadership
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, James Evans explains how and why China's leadership in global science is rising.
In this episode, we cover: •[00:00] Introduction •[00:56] Social and complex systems scientist James Evans recounts the recent history of the trajectories of science in the U.S. and in China. •[01:50] He explains how to measure a country's scientific leadership and introduces the data sources used in the study. •[04:18] Evans tells the results of the study, and talks about some areas of science in which China's leadership has particularly advanced. •[06:20] He lists the key takeaways from the study for policymakers and the benefits of global science engagement. •[08:47] Evans talks about the caveats and limitations of the work. •[09:54] Conclusion
About Our Guest:
James Evans Max Plofsky Professor of Sociology and Data Science University of Chicago
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2414893122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Genetic history of dog domestication
Genetic history of dog domestication Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Genetic history of dog domestication
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers explore the impact of domestication on dog genetics and behavior.
In this episode, we cover: •[00:00] Introduction •[01:00] Greger Larson explains how the history of gene flow between dogs and their wild relatives differs from what we know about other domestic species. •[02:38] Audrey Lin finds that low levels of wolf ancestry are found in almost two thirds of dog breeds. •[04:18] Linus Girdland Flink documents evidence of two genetic wolves on a remote Scandinavian island that may have been under human control. •[06:13] Clément Car explores how the mating systems of free-ranging village dogs could provide insight into canine domestication •[07:43] Katia Bougiouri explains how she used a statistical method to improve ancient genomes and what her results reveal about the history of inbreeding in dogs. •[09:21] Lachie Scarsbrook explains how he used museum specimens to reconstruct the history of inbreeding in German Shepherd Dogs. •[11:10] Eleanor Raffan analyzes genetic data and owner-submitted behavioral questionaries from 1,343 golden retrievers. •[12:54] Kathryn Lord finds that genetic testing cannot accurately predict canine behaviors. •[14:25] Final thoughts and conclusion.
About Our Guest: Greger Larson Professor University of Oxford
Audrey Lin Gerstner Postdoctoral Scholar American Museum of Natural History
Linus Girdland Flink Lecturer University of Aberdeen
Clément Car Postdoctoral Researcher University of Gdańsk
Katia Bougiouri Postdoctoral Researcher University of Copenhagen
Lachie Scarsbrook Postdoctoral Researcher University of Oxford, Ludwig Maximilian University of Munich
Eleanor Raffan University Associate Professor University of Cambridge
Kathryn Lord Postdoctoral fellow University of Massachusetts Chan Medical School
View related content here: https://www.pnas.org/doi/10.1073/pnas.2528616122 https://www.pnas.org/doi/10.1073/pnas.2421768122 https://www.pnas.org/doi/10.1073/pnas.2421759122 https://www.pnas.org/doi/10.1073/pnas.2421756122 https://www.pnas.org/doi/10.1073/pnas.2416980122 https://www.pnas.org/doi/10.1073/pnas.2421755122 https://www.pnas.org/doi/10.1073/pnas.2421757122 https://www.pnas.org/doi/10.1073/pnas.2421752122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Air pollution and pet health
Air quality and pet health Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
Air quality and pet health
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Stephen Jarvis explores the health impacts of poor air quality on pets.
In this episode, we cover: •[00:00] Introduction •[00:51] Environmental economist Stephen Jarvis explains how he became interested in the effects of air quality on pets. •[01:59] He talks about the similarities in exposure between humans and pets, and introduces the veterinary dataset used in the study. •[03:30] Jarvis explains the results of the study and the potential physiological effects of poor air quality. •[05:40] He talks about the implications of reducing air pollution for petcare and the takeaway messages of the study. •[08:17] Jarvis explains the caveats and limitations of the study. •[09:14] Conclusion.
About Our Guest:
Stephen Jarvis Assistant professor London School of Economics
View related content here: https://www.pnas.org/doi/10.1073/pnas.2504553122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Probing the die-off of Pacific oysters
A giant virus associated with oyster aquaculture mortality Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to …
Shownotes
A giant virus associated with oyster aquaculture mortality
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Curtis Suttle and Kevin Xu Zhong explain how a previously unidentified virus may be connected to mass die-offs of farmed Pacific oysters.
In this episode, we cover:
• [00:00] Introduction • [01:03] Environmental virologist Curtis Suttle introduces the importance of the Pacific oyster to aquaculture. • [01:42] Suttle describes mass mortality events, including one he witnessed. • [02:42] Environmental microbiologist Kevin Xu Zhong talks about the methods used to identify the Pacific Oyster Nidovirus 1. • [03:53] Zhong describes the notable features of the nidovirus. • [05:19] Zhong and Suttle explain how the nidovirus merits designation of a nidovirus family. • [06:25] Suttle explores the takeaways for oyster farmers and regulators. • [08:15] He lists the caveats and limitations of the study. • [09:40] Conclusion.
About Our Guests:
Kevin Xu Zhong Research Associate University of British Columbia
Curtis Suttle Professor University of British Columbia
View related content here: https://www.pnas.org/doi/10.1073/pnas.2426923122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Swamp lights and bat sight
Swamp lights and bat sight Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community …
Shownotes
Swamp lights and bat sight
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers explore two spooky mysteries: the source of will-o'-the-wisps and how bats integrate vision with echolocation.
In this episode, we cover: •[00:00] Introduction •[00:58] Richard Zare's background and expertise. •[01:26] Richard, have you ever seen will-o'-the-wisps in the wild? •[01:31] What did we already know about will-o'-the-wisps before your study? •[02:42] How could water droplets ignite methane? •[03:24] Tell us about the methods of your study. How did you explore this phenomenon? •[04:17] What are the broader implications of your findings, beyond just will-o'-the-wisps? •[05:20] What are the caveats or the limitations of the study? •[05:40] Laura Stidsholt's background and expertise. •[06:06] Laura, what can you tell us about the species you studied? •[06:25] What instruments did you attach to the bats? •[07:03] How did the bats' echolocation behavior compare in dark versus lit environments? •[08:14] What do the results suggest about the benefits of integrating information from multiple senses while hunting prey? •[08:58] What do the results imply about the potential impact of artificial light on bats? •[09:43] Final thoughts and conclusion.
About Our Guests: Richard Zare Marguerite Blake Wilbur Professor of Natural Science Stanford University
Laura Stidsholt Assistant Professor Aarhus University
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2521255122 https://www.pnas.org/doi/full/10.1073/pnas.2515087122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Enzyme linked with brain evolution
Implications of a mutation in modern humans Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
Implications of a mutation in modern humans
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Xiangchun Ju and Svante Pääbo explore the evolutionary implications of a mutation that separates modern humans from ancestral hominins.
In this episode, we cover: •[00:00] •[01:22] Neurobiologist Xiangchun Ju introduces the enzyme adenylosuccinate lyase, or ADSL, and its role in the synthesis of purine. •[02:09] Evolutionary anthropologist Svante Pääbo talks about the discovery of the A429V mutation, which is present in modern humans but not Neanderthals or Denisovans. •[03:38] Ju and Pääbo talk about the methods to humanize mice in order to study the evolutionary importance of the A429V mutation. •[05:04] They explain the results of the behavioral studies of the humanized mice. •[06:27] Pääbo explores the takeaways from the study. •[08:05] He contextualizes the study alongside other studies of modern human development. •[09:17] Pääbo and Ju list the caveats and limitations of the study. •[10:14] Conclusion.
About Our Guests:
Xiangchun Ju Postdoctoral scholar Okinawa Institute of Science and Technology
Svante Pääbo Director Max Planck Institute for Evolutionary Anthropology
View related content here: https://www.pnas.org/doi/10.1073/pnas.2508540122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Where primates evolved
Where primates evolved Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn …
Shownotes
Where primates evolved
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Jorge Avaria-Llautureo and Chris Venditti explain why the evolution of primates likely occurred in cold, dry climates rather than in tropical forests.
In this episode, we cover: •[00:00] Introduction •[00:58] Evolutionary biologist Jorge Avaria-Lautureo explains the prevailing hypothesis that primates evolved in a tropical climate •[02:54] Evolutionary biologist Chris Venditti introduces evidence suggesting a different origin climate. •[03:54] Avaria discusses how the researchers reconstructed the climate of early primate species. •[05:05] Venditti and Avaria explain why it was important to use standardized climate definitions in this study. •[07:29] Avaria describes the results of the study. •[08:18]Venditti talks about the importance of understanding early primates' climates. •[09:21] Avaria and Venditti talk about the study's caveats and limitations. •[10:22] Conclusion.
About Our Guests:
Jorge Avaria-Llautureo Postdoctoral scholar University of Reading
Chris Venditti Professor University of Reading
View related content here: https://www.pnas.org/doi/10.1073/pnas.2423833122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
How climate change alters lake oxygen levels
Climate change and lake oxygenation Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
Climate change and lake oxygenation
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Joachim Jansen explains how climate change altered cycles of oxygenation in lakes.
In this episode, we cover: •[00:00] Introduction. •[00:56] Limnologist Joachim Jansen introduces us to the cycles of oxygenation in lakes throughout the seasons. •[02:35] He describes previous hypothesis about climate change and lake oxygenation and introduces the methods and datasets of the study. •[04:59] Jansen introduces the results of the study, including key differences between large and small lakes. •[06:54] He talks about the consequences of deoxygenation. •[09:03] Jansen explains the caveats and limitations of the study. •[09:37] Conclusion.
About Our Guest:
Joachim Jansen Postdoctoral Researcher University of Helsinki
View related content here: https://www.pnas.org/doi/10.1073/pnas.2426140122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Unpacking the unreturnable squash nick shot
The physics of the squash nick shot Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific …
Shownotes
The physics of the squash nick shot
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Roberto Zenit explains the physics behind the unanswerable nick shot in the game of squash.
In this episode, we cover: •[00:00] Introduction. •[00:56] Engineer Roberto Zenit introduces the game of squash, including his participation in the sport, and introduces the nick shot. •[02:11] He talks about the background and methods of the study. •[04:50] Zenit describes the mechanics of a nick shot. •[06:01] He talks about the implications of the study for squash players and for other applications. •[08:52] Zenit recounts the caveats and limitations of the study. •[09:41] Conclusion.
About Our Guests:
Roberto Zenit Professor Brown University
View related content here: https://www.pnas.org/doi/10.1073/pnas.2505715122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
North America's oldest pterosaur fossil
A pterosaur and its ecosystem at the end of the Triassic Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to …
Shownotes
A pterosaur and its ecosystem at the end of the Triassic
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Kay Behrensmeyer and Ben Kligman describe what a fossil bone bed in Arizona reveals about a 209-million-year-old pterosaur and its ecosystem.
In this episode, we cover: •[00:00] Introduction •[01:01] Paleoecologist Kay Behrensmeyer and paleontologist Ben Kligman describe the discovery of this fossil bone bed. •[03:10] Kligman and Behrensmeyer introduce a previously undescribed pterosaur. •[05:00] They talk about what this specimen says about the ecology and evolution of pterosaurs. •[06:15] Kligman and Behrensmeyer talk about the importance of studying this fossil community. •[07:52] They explain how their methods can improve paleontology and discovery of small fossils. •[09:08] Behrensmeyer and Kligman talk about the study's caveats and limitations. •[10:10] Conclusion.
About Our Guests:
Kay Behrensmeyer Curator of Paleobiology National Museum of Natural History, Smithsonian Institution
Ben Kligman Postdoctoral Fellow National Museum of Natural History, Smithsonian Institution
View related content here: https://www.pnas.org/doi/10.1073/pnas.2505513122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Exploring the origins of a glacial relict seal
The postglacial history of the Saimaa ringed seal Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's …
Shownotes
The postglacial history of the Saimaa ringed seal
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Jaakko Pohjoismäki, Jukka Jernvall, and Ari Löytynoja discuss the evolutionary history of the Saimaa ringed seal.
In this episode, we cover: •[00:00] Introduction •[01:06] Molecular biologist Jaakko Pohjoismäki introduces Lake Saimaa and the Saimaa ringed seal. •[02:30] Zoologist Jukka Jernvall talks about the characteristics of species isolated by glaciation. •[03:27] Evolutionary biologist and bioinformatician Ari Löytynoja explains the genetic and demographic methods of the study. •[04:11] Löytynoja and Jernvall explain why the results were surprising and where the study turned next. •[06:20] Pohjoismäki and Löytynoja describe the study's implications for biodiversity in postglacial habitats. •[07:50] Jernvall and Löytynoja talk about the study's caveats and limitations. •[10:14] Conclusion.
About Our Guests:
Jaakko Pohjoismäki Professor University of Eastern Finland
Jukka Jernvall Professor University of Helsinki
Ari Löytynoja University Lecturer University of Helsinki
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2503368122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Conservation of the Eastern Black Rhinoceros
Managing eastern black rhinoceros populations with genetic studies Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics …
Shownotes
Managing eastern black rhinoceros populations with genetic studies
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, Barbara Mable and Ronald Mellya show how allowing endangered rhinos to move between populations enhances genetic diversity.
In this episode, we cover: •[00:00] Introduction •[01:00] Evolutionary geneticist Barbara Mable explains why is genetic diversity important in managing small, isolated populations of rhinos. •[02:59] Park warden Ronald Mellya describes how his firsthand experience with rhino management led to this study. •[04:52] Mable explains the methods of the study and the contributions of co-author Anubhab Khan. •[06:20] Mable talks about the results. •[07:24] Mellya tells how the study has changed rhino management in Tanzania. •[08:37] Mable and Mellya enumerate the caveats and limitations of the study. •[10:20] Conclusion.
About Our Guests:
Barbara Mable Professor University of Glasgow
Ronald Mellya Park Warden Tanzania National Parks
View related content here: https://www.pnas.org/doi/abs/10.1073/pnas.2414412122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: https://www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Hier stehen die neuesten 40 von 426 Folgen. Ältere Folgen findest du im Feed des Podcasts.
Ähnliche Podcasts
Mehr Wissenschaft-Podcasts
Ist das dein Podcast?
Bestätige es mit einem Eintrag in deinem Feed: Du bekommst hier einen Code, trägst ihn als podcast:txt in den Kanal deines Feeds ein, und wir prüfen ihn. Danach steht dein Podcast als „verifiziert“ bei SoundNode.