Big Picture Science

Back off, you Neanderthal! It sounds as if you’ve just been dissed, but maybe you should take it as a compliment. Contrary to common cliches, our Pleistocene relatives were clever, curious, and technologically inventive. Find out how our assessment of Neanderthals has undergone a radical rethinking, and hear about the influence they have as they live on in our DNA. For example, some of their genes have a strong association with severe Covid 19 infection. Plus, how Neanderthal mini-brains grown in a lab will teach us about the evolution of Homo sapiens. Guests: Svante Pääbo – Evolutionary geneticist and Director of the Max Planck Institute for Evolutionary Anthropology. Doyle Stevick – Associate professor of educational leadership and policies at the University of South Carolina. Beverly Brown – Professor emerita of anthropology, Rockland Community College, New York. Rebecca Wragg Sykes – Paleolithic anthropologist, author of “Kindred: Neanderthal Life, Love, Death and Art.” Alysson Muotri – Neurosci

Owls are both the most accessible and elusive of birds. Every child can recognize one, but you’ll be lucky to spot an owl in a tree, even if you’re looking straight at it. Besides their camouflage and silent flight, these mostly nocturnal birds, with their amazing vision and hearing, are most at home in the dead of night, a time humans find alien and scary. Ecologist Carl Safina got to know an injured baby screech owl well. Their relationship saved the owl’s life and gave Safina insider’s wisdom about these aerial hunters of the night. Guests: Carl Safina – ecologist at Stony Brook University, head of the non-profit Safina Center, and author of “Alfie & Me: What Owls Know, What Humans Believe” Tom Damiami – natural resources interpreter, singer on Long Island, NY and leader of the Shelter Island Owl Prowl Gordy Slack – science writer, former senior editor of California Wild, the science and natural history magazine published by the California Academy of Sciences Featuring music by Dewey Dellay and Jun Miyake

“To live is to count and to count is to calculate.” But before we plugged in the computer to express this ethos, we pulled out the pocket calculator. It became a monarch of mathematics that sparked a computing revolution. But it’s not the only deceptively modest innovation that changed how we work and live. Find out how sewing a scrap of fabric into clothing helped define private life and how adding lines to paper helped build an Empire. Plus, does every invention entail irrevocable cultural loss? Guests: Keith Houston – author of “Empire of the Sum: The Rise and Reign of the Pocket Calculator.” Hannah Carlson – teaches dress history and material culture at the Rhode Island School of Design, author of “Pockets: An Intimate History of How We Keep Things Close.” Dominic Riley – bookbinder in the U.K. Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You

Every second, lightning strikes 50 to 100 times somewhere. It can wreak havoc by starting wildfires and sometimes killing people. But lightning also produces a form of nitrogen that’s essential to vegetation. In this episode, we talk about the nature of these dramatic sparks. Ben Franklin established their electric origin, so what do we still not know? Also, why the frequency of lightning strikes is increasing in some parts of the world. And, what to do if you find someone hit by lightning. Guests: Thomas Yeadaker – Resident of Oakland, California Chris Davis – Medical doctor and Assistant Professor of Emergency Medicine at Wake Forest University and Medical Director for the National Center for Outdoor Adventure Education Jonathan Martin – Professor of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison Steve Ackerman – Professor of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison Peter Bieniek – Professor of Atmospheric and Space Science, University of Alaska, Fairbanks *Orig

Poisonous snakes, lightning strikes, a rogue rock from space. There are plenty of scary things to fret about, but are we burning adrenaline on the right ones? Stepping into the bathtub is more dangerous than flying from a statistical point of view, but no one signs up for “fear of showering” classes.  Find out why we get tripped up by statistics, worry about the wrong things, and how the “intelligence trap” not only leads smart people to make dumb mistakes, but actually causes them to make more. Guests: Eric Chudler – Research associate professor, department of bioengineering, University of Washington, Seattle and co-author of “Worried: Science Investigates Some of Life’s Common Concerns” Lise Johnson – Director of the Basic Science Curriculum, Rocky Vista University, and co-author of “Worried: Science Investigates Some of Life’s Common Concerns” Willie Turner – Vice President of Operations at the Hiller Aviation Museum in San Carlos, CA Charles Wheelan – Senior Lecturer and Policy Fellow, Dartmouth College,

Imagine life without animals, trees, and fungi. The world would look very different. But while the first life was surely single-celled, we don’t know just how it evolved to multicellular organisms. Two long-term experiments hope to find out, and one has been running for more than 35 years. Hear about the moment scientists watched evolution take off in the lab, and how directed evolution was used to create a multicellular organism. Also, how single embryonic cells become humans, and what all of this says about the possibility of life on other worlds. Guests: Jeff Barrick – molecular scientist at the University of Texas at Austin where his lab oversees the Long-Term Evolution Experiment that’s been running since 1988.  Will Ratcliff - an evolutionary biologist at Georgia Institute of Technology Ben Stanger - cancer researcher, professor of medicine and developmental biology at the University of Pennsylvania and author of “From One Cell: A Journey into Life’s Origins and the Future of Medicine.” Joseph L. Graves

Extreme heat is taking its toll on the natural world. We use words like “heat domes” and “freakish” to describe our everyday existence. These high temperatures aren’t only uncomfortable - they are lethal to humans, animals, and crops. In search of an answer to our episode’s question, we discuss the dilemma of an ever-hotter world with an author who has covered climate change for more than twenty years.  Guest: Jeff Goodell – author of “The Heat Will Kill You First: Life and Death on a Scorched Planet.” Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

Near death experiences can be profound and even life changing. People describe seeing bright lights, staring into the abyss, or meeting dead relatives. Many believe these experiences to be proof of an afterlife. But now, scientists are studying these strange events and gaining insights into the brain and consciousness itself. Will we uncover the scientific underpinning of these near-death events?  Guests: Steve Paulson - executive producer of To the Best of Our Knowledge for Wisconsin Public Radio Sebastian Junger - journalist, filmmaker and author of “The Perfect Storm: A True Story of Men Against the Sea”  Christoph Koch - neuroscientist at the Allen Institute in Seattle and chief scientist of the Tiny Blue Dot Foundation in Santa Monica California  Daniel Kondziella - neuroscientist in the Department of Clinical Medicine at the University of Copenhagen Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.co

Have you ever heard worms arguing? Deep-sea scientists use hydrophones to eavesdrop on “mouth-fighting worms.” It’s one of the many ways scientists are trying to catalog the diversity of the deep oceans — estimated to be comparable to a rainforest. But the clock is ticking. While vast expanses of the deep sea are still unexplored, mining companies are ready with dredging vehicles to strip mine the seafloor, potentially destroying rare and vulnerable ecosystems. Are we willing to eradicate an alien landscape that we haven’t yet visited? Guests: Craig McClain - deep-sea and evolutionary biologist and ecologist, Executive Director of the Louisiana Universities Marine Consortium. Steve Haddock - senior scientist at the Monetary Bay Aquarium Research Institute, and co-author of a New York Times op-ed about the dangers of mining. Emily Hall - marine chemist at the Mote Marine Laboratory, Sarasota, Florida Chong Chen - deep sea biologist with the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) *Origin

Brace yourself for heatwave “Lucifer.” Dangerous deadly heatwaves may soon be so common that we give them names, just like hurricanes. This is one of the dramatic consequences of just a few degrees rise in average temperatures. Also coming: Massive heat “blobs” that form in the oceans and damage marine life, and powerful windstorms called “derechos” pummeling the Midwest.  Plus, are fungal pathogens adapting to hotter temperatures and breaching the 98.6 F thermal barrier that keeps them from infecting us? Guests: Kathy Baughman McLeod – director and senior vice president of the Adrienne Arsht-Rockefeller Foundation Resilience Center at The Atlantic Council Pippa Moore – Marine ecologist at Newcastle University in the U.K. Ted Derouin – Michigan farmer Jeff Dukes – Ecologist and director of Purdue Climate Change Research Center at Purdue University. Arturo Casadevall – Molecular microbiologist and immunologist at the Johns Hopkins School of Medicine Originally aired October 19, 2020 Big Picture Science is part

Ready to become a space emigre? For half a century, visionaries have been talking about our future off-Earth – a speculative scenario in which many of us live in space colonies. So why haven’t we built them? Will the plans of billionaire space entrepreneurs to build settlements on Mars, or orbiting habitats that would be only minutes away from Earth, revive our long-held spacefaring dreams? And is having millions of people living off-Earth a solution to our problems… or an escape from them? Guests: Marianne Dyson – Author and former NASA flight controller Emily St. John Mandel – Author, most recently of “Sea of Tranquility” John Adams – Deputy Director, Biosphere 2, University of Arizona Featuring music by Dewey Dellay and Jun Miyake *Originally aired July 25, 2022 Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreo

Birds and bees do it … and so do fish. In a discovery that highlights the adaptive benefits of walking, scientists have discovered fish that can walk on land. Not fin-flap their bodies, mind you, but ambulate like reptiles.   And speaking of which, new research shows that T Rex, the biggest reptile of them all, wasn’t a sprinter, but could be an efficient hunter by outwalking its prey. Find out the advantage of legging it, and how human bipedalism stacks up. Not only is walking good for our bodies and brains, but not walking can change your personality and adversely affect your health.  Guests:  Hans Larsson – Paleontologist and biologist, and Director of the Redpath Museum at McGill University in Montréal. Shane O’Mara – Neuroscientist and professor of experimental brain research at Trinity College Dublin. He is the author of “In Praise of Walking.” Brooke Flammang – Biologist at the New Jersey Institute of Technology. Originally aired October 5, 2020 Big Picture Science is part of the Airwave Media podcast

Your daily mucus output is most impressive. Teaspoons or measuring cups can’t capture its entire volume. Find out how much your body churns out and why you can’t live without the viscous stuff. But slime in general is remarkable. Whether coating the bellies of slithery creatures, sleeking the surface of aquatic plants, or dripping from your nose, its protective qualities make it one of the great inventions of biology. Join us as we venture to the land of ooze! Guests: Christopher Viney - Professor of materials science and engineering at the University of California, Merced Katharina Ribbeck - Bioengineer at MIT Anna Rose Hopkins - Chef and partner at Hank and Bean in Los Angeles Ruth Kassinger - author of “Slime: How Algae Created Us, Plague Us, and Just Might Save Us” *Originally aired January 27, 2020 Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions

“Diversity or die” could be your new health mantra. Don’t boost your immune system, cultivate it! Like a garden, your body’s defenses benefit from species diversity. Find out why multiple strains of microbes, engaged in a delicate ballet with your T-cells, join internal fungi in combatting disease. Plus, global ecosystems also depend on the diversity of its tiniest members; so what happens when the world’s insects bug out? Guests: Matt Richtel – Author, most recently, of “An Elegant Defense: The Extraordinary New Science of The Immune System” Rob Dunn – Biologist and professor in the Department of Biological Sciences at North Carolina State University. Author of “Never Home Alone” David Underhill – Professor of medicine, Cedars-Sinai Hospital, Los Angeles, California Anne Sverdrup-Thygeson – Professor in conservation biology at the Institute for Ecology and Nature Management at the Norwegian University of Life Sciences. Author of “Buzz, Sting, Bite: Why We Need Insects” Originally aired August 12, 20

UFOs are back. This time they’ve landed on Capitol Hill in the form of a public, congressional hearing. We watched the hearing with great interest, but felt dissatisfied when it came to evidence. Claims that the government has alien technology are obviously tantalizing. So tantalizing, in fact, that it’s easy to overlook logical fallacies in how these claims are presented. We identify a few of the missteps. But what would convince you that the government is aware of alien visitation? Is the word of an authority figure all we need to accept that “they’re here?”  Guests: Benjamin Radford - Research fellow with the Committee for Skeptical Inquiry Nadia Drake - Science journalist and member of NASA’s UAP group James McGaha - Retired military pilot and astronomer he's a longtime investigator of UFO reports and claims and he's a scientific consultant to the Committee for Skeptical Inquiry Mick West - A skeptical investigator who looks at claims of UFOs Featuring music by Dewey Dellay and Jun Miyake Big Picture Scie

Imagine tapeworms longer than the height of an adult human. Or microbes that turn their hosts into zombies. If the revulsion they induce doesn’t do it, the sheer number of parasites force us to pay attention. They are the most abundant form of animal life on Earth. Parasites can cause untold human suffering, like those that cause African River Blindness or Lyme disease, but their presence is also a sign of a health ecosystem. A parasitologist whose lab contains the largest parasite collection in the world gives us the ultimate inside story about these organisms.  Guest: Scott Gardner - curator of parasites in the H.W. Manter Laboratory of Parasitology at the University of Nebraska State Museum, one of the largest collections of parasites in the world, and professor of biological sciences at University of Nebraska. Co-author of Parasites: The Inside Story. Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com

Whether in miles or pounds, meters or kilograms, we take daily measure out our lives. But how did these units ever come to be, and why do we want to change them? From light-years to leap seconds, we look at the history of efforts to quantify our lives and why there’s always room for greater precision. Plus, we debate the virtues of staying imperial measurements vs. going metric. Guest: James Vincent - Author of Beyond Measure, the Hidden History of Measurement Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!   Learn more about your ad choices. Visit megaphone.fm/adchoices

Thinking small can sometimes achieve big things. A new generation of diminutive robots can enter our bodies and deal with medical problems such as intestinal blockages. But do we really want them swimming inside us, even if they’re promising to help? You might change your mind when you hear what else is cruising through our bloodstream: microplastics!  We take a trip into the human body, beginning with the story of those who first dared to open it up for medical purposes. But were the first surgeons really cavemen? Guests: Ira Rutkow – Surgeon and writer, and author of “Empire of the Scalpel: The History of Surgery” Dick Vethaak – Emeritus professor of ecotoxicology, water quality and health at the Vrije Universiteit Amsterdam (Free University, Amsterdam) in The Netherlands Li Zhang – Professor in the Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong Michael LaBarbera – Professor in organismal biology, anatomy and geophysical sciences, University of Chicago Orig

Do we have physical evidence of the last day of the dinosaurs? We consider fossilized fish in South Dakota that may chronicle the dramatic events that took place when, 66 million years ago, a large asteroid slammed into the Gulf of Mexico and caused three-quarters of all species to disappear.  Also, what new discoveries have paleontologists made about these charismatic animals, and the director of Jurassic World: Dominion talks about how his film hews to the latest science. Hint: feathers! It’s deep history, as we look at what happened as terrestrial life experienced its worst day ever. Guests: Colin Trevorrow – Director of Jurassic World: Dominion Riley Black – Science writer and author of “The Last Days of the Dinosaurs” Anusuya Chinsamy-Turan – Paleontologist at the University of Cape Town, South Africa *Originally aired June 13, 2022 Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquir

Runny nose. Itchy, watery eyes. Sneezing. If you don’t have allergies, you probably know someone who does. The number of people with allergies, including food allergies and eczema, is increasing. What is going on? A medical anthropologist describes how our hygiene habits, our diets, and our polluted environment are irritating our bodies. Also, the case for skipping your shower. Is skin healthier when we stop lathering? Guests: James Hamblin – Preventive medicine physician and a lecturer in public health at Yale and author of Clean: the New Science of Skin Theresa MacPhail – medical anthropologist, professor of science and technology studies at Stevens Institute of Technology and author of Allergic: Our Irritated Bodies in a Changing World. Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode b