Many Minds

Kensy Cooperrider – Diverse Intelligences Summer Institute
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Our world is brimming with beings—human, animal, and artificial. We explore how they think, sense, feel, and learn. Conversations and more, every two weeks.

  1. 3d ago

    The natural history of linguistic diversity

    Thousands of languages are used around the world today, and this linguistic diversity is a precious part of our human heritage. But it's also more than that. Linguistic diversity provides clues—a vast crazy quilt of clues—about how language works, about how history has unfolded, about the dynamics of culture, and about the nature of the human mind. My guest today is Dr. Damián Blasi. Damián is an ICREA Research Professor based at the Center for Brain & Cognition at the Pompeu Fabra University in Barcelona. Over the last decade or so, Damián's emerged as one of the most innovative researchers in the study of language and linguistic diversity. He's been widely recognized for this work, and most recently was awarded the 2026 FABSS Early Career Impact Award from the Cognitive Science Society. In this conversation, Damián and I talk about why scientists should care about linguistic diversity. We do a bit of linguistic diversity 101—how many languages there are, how we can enumerate them, how they vary. We discuss a recent paper in which Damián and his colleagues reconstructed the explosive rise and precipitous fall of human linguistic diversity over the last 12,000 years. We talk about the factors that drive language change. And we discuss how cognitive science relies too much on English and English speakers—and how this may be holding the field back. Along the way, Damián and I touch on the Tower of Babel, a golden age of linguistic diversity, the human bite configuration, scientific aesthetics, whether children shape language, polygenetic theories of language evolution, the pace of language change, schooling, linguistic inequality and behemoth languages, and why Damián thinks that the possibility space of human language might be bigger and wilder than we currently imagine. This is a special episode of the Many Minds podcast. As I mentioned, Damián is this year's winner of an award from the Cognitive Science Society, in recognition of his outstanding early-career contributions to the field. He recently gave a keynote at the society's annual conference in Rio de Janeiro, and we've partnered with the Cognitive Science Society to feature this conversation about his work. I'll also mention that this wasn't my first time chatting with Damián—he's an alumnus of the Diverse Intelligences Summer Institute (DISI), the sponsor & incubator of this podcast. We met there a couple years ago, and so it was all the more fun to reconnect with him here. Alright friends, without further ado, on to my conversation with Dr. Damián Blasi. Enjoy!   Notes 10:00 – The UNESCO page on multilingualism and linguistic diversity. 17:00 – The Ethnologue database. 20:00 – For examples of Dr. Blasi's work on "behemoth languages" and on how languages are not represented equally in terms of technological and development investment, see here and here. 26:00 - For the paper in which Dr. Blasi and colleagues introduced Grambank, see here. For the database itself, see here. 29:00 – For Dr. Blasi's earlier work on sound-meaning associations across languages, see here. 33:00 – For discussion of Darwin's views on monogenesis vs polygenesis and race, see our recent episode. 36:00 – For more about pronouns—and how they do and do not vary across the world's languages—see several chapters in the World Atlas of Language Structures. 39:00 – The paper—'Babies aren't persons'—by David Lancy. 41:00 - For Dr. Blasi and colleagues' recent Science paper on the rise and fall of human linguistic diversity, see here. 59:00 – For a recent study of linguistic diversification, including discussion of so-called schismogenesis, see here. For an example of Cristina Moya's work on ethnic identity in the Andes region, see here. 1:00:00 – For an example of Dr. Blasi's work on how ecology shapes language—a topic not discussed in this conversation—see here. 1:01:00 ­– For the study by Dr. Blasi and colleagues about changes in the human bite configuration and how these changes have shaped sound systems, see here. 1:14:00 – For the recent paper by Dr. Blasi and colleagues about the (non-)role of children in language change, see here. 1:22:00 – The paper by Dr. Blasi and colleagues about the over-reliance on English in the cognitive sciences (and how it hinders the field). 1:24:00 – See here for work by Aitor Egurtzegi, in collaboration with Dr. Blasi and others, on ergativity and gaze patterns across languages. 1:27:00 – For the preprint—'Which humans?'—led by Mohammad Atari (and including Dr. Blasi and others), see here. 1:30:00 – For a recent argument that psychology needs to overcome its "ahistorical" bent, see here.   Recommendations A Myriad of Tongues, Caleb Everett The Secret of Our Success, Joseph Henrich Linguistic Diversity in Space and Time, Johanna Nichols   Tile art credit: Painting by Pieter Bruegel the Elder (detail)   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com. For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).

  2. Aug 17

    From the archive: Electric ecology

    Hi friends! We're still taking a bit of a summer pause. We'll be back at the end of August—in the meanwhile, enjoy this listener favorite from our archives! ----- [originally aired September 19, 2024] There's a bit of a buzz out there, right now, but maybe you haven't noticed. It's in the water, it's in the air. It's electricity—and it's all around us, all the time, including in some places you might not have expected to find it. We humans, after all, are not super tuned in to this layer of reality. But many other creatures are—and scientists are starting to take note. My guest today is Dr. Sam England. Sam is a sensory ecologist at the Natural History Museum in Berlin, and one of a handful of scientists uncovering some shocking things about the role of electricity in the natural world. Here, Sam and I have a wide-ranging conversation about electroreception—which is the perception of electrical stimuli—and electric ecology—which is the study of the ecological roles of electricity. We talk about how an interest in electroreception first got started, and why it's recently resurged. We discuss aquatic electroreception versus aerial electroreception, active electroreception versus passive electroreception. We talk about how electroreception is actually kind of easy to evolve. Along the way, we consider electrolocation and, its analog in sound, echolocation. We touch on dolphins, sharks, echidnas, ticks, caterpillars, bees, and spiders. We zoom in on electrostatic pollination, and what is inarguably the coolest sounding anatomical structure known to biology: the ampullae of Lorenzini. I think you'll enjoy this one, friends. As Sam describes here, electroreception is one of those "alien senses"—it really challenges the imagination. And electric ecology is one of those frontiers in our understanding of the natural world. So without further ado, here's my chat with Dr. Sam England. Enjoy!   A transcript of this episode is available here.   Notes and links 3:00 – For many of the topics discussed in this episode, see this comprehensive recent review of electroreception and electric ecology by Dr. England and a colleague. 7:30 – A paper reviewing the (contested) phenomenon of electromagnetic hypersensitivity in humans. 9:30 – An encyclopedia article on electroreception in monotremes. 13:00 – An early study of electrolocation in "weakly electric" fish. 17:00 – A popular article about the discovery of electroreception in sharks. 20:30 – A 2013 study showing that bumblebees detect the electric fields around flowers. 23:30 – A recent review of electroreception and its evolution in fish.   25:00 – A study demonstrating electroreception in the Guiana dolphin. 34:00 – A recent study by Dr. England and colleagues showing that static electricity pulls ticks onto hosts. 43:00 – For more on echolocation, see our earlier episode on bats. 47:00 – A recent paper by Dr. Ryan Palmer, examining the theoretical possibilities of electroreception in air. 52:30 – A (controversial) 2022 paper on possibly language-like communication in fungi via electricity. 55:00 – Another 2013 study on electroreception in bees, this one in honeybees. 56:30 – An animated video describing the role that electricity plays in spider ballooning. 1:00:00 – Dr. England's recent study showing that caterpillars can detect the electric fields around wasps. 1:03:00 – A discussion of triboelectric effects. 1:11:00 – Dr. England's recent study of electrostatic pollination in butterflies and moths. 1:19:00 – A study arguing that the sexual organs of flowers may have evolved to take advantage of electrostatic pollination. 1:25:00 ­– For more on spider eyes, see our recent episode all about spiders.   Recommendations 'Electroreception, electrogenesis and electric signal evolution,' William Crampton An Immense World, Ed Yong (a previous guest!)   Tile image credit: Francisco Jesús Navarro Hernández via Unsplash   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com.  For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).

  3. Jul 31

    From the archive: Varieties of childhood

    Hi friends! We're taking a bit of a summer pause. We'll be back soon—in the meanwhile, enjoy this listener favorite from our archives! ----- [originally aired July 10, 2025] Childhood is a special time, a strange time. Children are adored and catered to—they're given their own menus and bedrooms. They're considered delicate and precious, and so we cushion them from every imaginable risk. Kids are encouraged to play, of course—but very often it's under the watchful eye of anxious adults. This, anyway, is how childhood looks in much of the United States today. But is this the way childhood looks everywhere? Is this the way human childhoods have always been? My guests today are Dr. Dorsa Amir and Dr. Sheina Lew-Levy. Dorsa is an Assistant Professor of Psychology & Neuroscience at Duke University, where she runs the Mind and Culture Lab. Sheina is an Associate Professor of Psychology at Durham University in the UK, where she co-directs the Forager Child Studies research group. Both Sheina and Dorsa have spent much of their careers thinking about how childhoods differ across cultures—and why. In this conversation, I talk with Dorsa and Sheina about their fieldwork with indigenous groups in Ecuador and the Congo, respectively. We discuss the different ways that childhood differs in these places—for instance, in terms of parents' attitudes toward risk, in terms of the social structures and activities in which kids are embedded, and in terms of the freedom that children are granted. We discuss developmental psychology's "WEIRD problem." We talk about the quasi-autonomous cultures that children create among themselves—sometimes called "peer cultures"—and discuss how these kid-driven cultures end up shaping and benefit the larger community. Along the way, we touch on adult supremacy, adverse childhood experiences, walking the forest and climbing papaya trees, parenting norms, ding dong ditch and "nananabooboo", the pioneering work of the folklorists Iona and Peter Opie, teaching, toys, and the enduring question of what childhood is for.   Alright friends, lots to think about here. On to my conversation with Sheina Lew-Levy and Dorsa Amir. Enjoy!   A transcript of this episode is available here.   Notes and links 9:30 – For an overview of work on how culture shapes motor development, see here. 11:00 – The paper by Dr. Lew-Levy's and a colleague about "walking the forest." 16:00 – Dr. Amir's TedX talk, 'How the Industrial Revolution Changed Childhood.' 17:30 – For some of Dr. Amir's work on risk across cultures, see here. 35:00 – For a recent paper by Dr. Lew-Levy and colleagues about the evolution of childhood, see here. 39:00 – The popular article by Ann Gibbons, 'The Birth of Childhood.' 41:00 – For the idea of the "patriarch hypothesis," see here. 42:00 – For more on the "WEIRD problem" in developmental psychology, see here. 48:00 – A paper by Dr. Lew-Levy and colleagues about toys in hunter-gatherer groups. For more on the material culture of childhood, see our earlier episode with Michelle Langley. 52:00 – A recent paper by Dr. Lew-Levy on the prevalence of "child-to-child" teaching. 56:00 – A paper by Dr. Amir and a colleague about the concept of "adverse childhood experiences" in cross-cultural perspective. 1:04:00 – The paper by Dr. Amir and Dr. Lew-Levy on "peer cultures" and children as agents of cultural adaptation. 1:08:00 – For more on the idea of children as the "research and development" wing of the species, see our earlier episode with Alison Gopnik. 1:10:00 – For more on the Opies, see here. 1:13:00 – For the work of (past guest) Olivier Morin on children's culture, see here. 1:23:00 – For the paper by Dr. Camilla Morelli, 'The River Echoes with Laughter,' see here.   Recommendations The Lore and Language of Schoolchildren, by Iona and Peter Opie The Gardener and the Carpenter, by Alison Gopnik The Anthropology of Childhood, by David Lancy Intimate Fathers, by Barry Hewlett   Tile image credit: Image by Lora Moore-Kakaletris via Unsplash   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com.    For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).

  4. Jul 17

    From the archive: Philosophers on psychedelics

    Hi friends! We're taking a bit of a summer pause. We will be back soon—in the meanwhile, enjoy this listener favorite from our archives! ----- [originally aired May 14, 2025] Some call it the "psychedelic renaissance." In the last decade or so, interest in psychedelic drugs has surged—and not just among Silicon Valley types and psychiatrists and neuroscientists. It's also surged among a stereotypically soberer crowd: academic philosophers. The reasons are clear. With their varied and sometimes transformative effects, psychedelics raise ethical questions, epistemological questions, metaphysical questions, questions about the nature of experience and the nature of the mind. My guest today is Dr. Chris Letheby. Chris is a philosopher of cognitive science at the University of Western Australia and the author of the 2021 book, Philosophy of Psychedelics. Here, Chris and I talk about the so-called classic psychedelics—LSD, psilocybin, ayahuasca, and others—and how interest in them has gone through three distinct waves. We discuss the effects that these substances seem to have, in particular their capacity to treat certain psychiatric conditions and their tendency to induce "mystical-like" experiences. We consider the idea that psychedelics might serve as agents of moral enhancement. And we dig into the psychological and neural mechanisms by which psychedelics seem to have their diverse—and often salutary—effects. Along the way, we talk about ontological shock, comforting delusions, brain plasticity, unselfing, microdosing, placebo effects and adverse effects, physicalism and idealism, the REBUS model, environmental virtues, plant consciousness, meditation, and much more. Maybe this is obvious but this episode is not just for the seasoned psychonauts out there. Whatever your personal experience with these substances, they offer a distinctive window into the mind—a new way of grappling with big questions. Perhaps this much is also obvious but we're not encouraging or endorsing the use of psychedelics here—just offering a little fuel for your intellectual fires! Alright friends, on to my conversation w/ Dr. Chris Letheby. Enjoy!   A transcript of this episode is available here.    Notes and links 4:00 – For a brief historical overview of research into psychedelics, see this paper. 8:30 – For work by an early trailblazer in the philosophy of psychedelics, see Thomas Metzinger's Being No One. 12:30 – For our earlier episode on the psychology and philosophy of visual illusions, see here.  18:00 – For a history of the concept of "set and setting," see here. 19:00 – A 2024 review of "adverse events" in classic psychedelics. 26:00 – A blog post on the history of the term "psychedelic." 27:00 – A recent review and meta-analysis of the use of psychedelic therapy for depressive symptoms. 31:00 – On mystical experience see Walter Stace's classic work, Mysticism and Philosophy. On the measurement of mystical-type experiences, see, e.g., Walter Pahnke's paper here. 36:00 – On the idea of "psychoplastogens," see here. 39:00 – See our earlier audio essay on placebo effects. 41:00 – For the study using Ritalin as an active placebo, see here.  44:00 – Michael Pollan's book on psychedelics is here. 48:00 – On the idea of "idealism," see here. 50:30 – For the 2021 study on psychedelics' capacity to alter metaphysical beliefs, see here. 54:00 – For Dr. Letheby and collaborators' paper about the "mysticism wars," see here. 1:02:00 – For a popular article on the possibility that psychedelics reduce fear of death, see here. 1:03:00 – For Dr. Letheby's paper on psychedelics and the fear of death, see here. 1:11:00 – The phrase "comforting delusion" comes from an article by Michael Pollan. 1:15:00 – For the "REBUS model," see here. 1:20:00 – On the idea that psychedelics could serve as agents of moral enhancement, see the paper by Brian Earp here. 1:21:00 – For Dr. Letheby's paper on psychedelics and environmental virtues, see here. For his paper on psychedelics and forgiveness, see here. 1:23:00 – On the subfield of "virtue ethics," see here. On the virtue of "living in place," see the paper by Nin Kirkham here. 1:28:00 – For the New Yorker article, by Matthew Hutson, on how psychedelics led him to see trees as smart, see here. For the study, led by Sandeep Nayak, on psychedelics leading people to expand their attributions of consciousness, see here. 1:32:00 – For a first paper by Dr. Letheby on the comparison between meditation and psychedelics, see here.   Recommendations Psychedelic Experience, Aidan Lyon Varieties of Psychedelic Experience, Robert Masters & Jean Houston The Antipodes of the Mind, Benny Shanon   Tile image credit: Image by Jr Korpa via Unsplash     Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com.  For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).

  5. Jul 3

    The origins of Darwin's ideas

    No discipline, no sphere of intellectual life, has been untouched by the work of Charles Darwin. He died in 1882 but his ideas are very much alive; they're now central to how we understand the natural world, the human mind, non-human minds, plants, biogeography, morality and emotion, culture, language, and more. But where did his ideas come from? How did they grow out of his travels, his social circle, his hobbies, his particular cast of mind?  My guest today is Dr. Janet Browne. Janet is Professor Emerita at Harvard University in the department of the History of Science. She is perhaps best known for her widely acclaimed two-volume biography of Charles Darwin. And she has now published an updated and abridged single-volume version.   Here, Janet and I talk about Darwin's life and ideas. We pick up the story during his travels on the Beagle, a five-year voyage that laid the foundation for the rest of his career. We talk about what he was reading, what he was seeing, and how these experiences helped form his most influential work, On the Origin of Species. We discuss Darwin's style as a thinker, as a naturalist, as a writer, and as an experimentalist. We touch on his relationships with contemporaries like Charles Lyell and Alfred Russel Wallace. And we consider his long—and often overlooked—engagements with pigeons, barnacles, plants, and worms.  I greatly enjoyed Janet's two-volume biography of Darwin, and I enjoyed this new single-volume edition just as much. So if this episode sparks your interest, I heartily recommend that you check these books out. Alright friends, on to my conversation with Dr. Janet Browne. Enjoy!   Notes 3:30 – Darwin's autobiography is available here. All of Darwin's letters are readable (and searchable) at the Darwin Correspondence Project. 11:00 – Darwin's account of his five-year stint on the HMS Beagle can be found in his book, The Voyage of the Beagle.  17:00 – Charles Lyell's Principles of Geology (Vol. 1). 27:00 – For a recently published history of Lamarck and his ideas, see here.  31:00 – For more on Darwin's interest in pigeons and pigeon breeding, see here.  34:00 – For more on Darwin's barnacle studies, see here. 40:00 – For a brief account of the relationship between Wallace and Darwin, see Dr. Browne's article here. 44:00 – Alfred Russel Wallace's The Malay Archipelago is here. Wallace's own essay on natural selection, sent to Darwin before the publication of On the Origin of Species, is here. The proceedings in which Darwin's and Wallace's first papers on natural selection appeared together. 53:00 – For a modern treatment of the concept of sexual selection, see here. For an online version of Darwin's The Descent of Man, see here. For a recent collection of essays on Darwin's Descent, including one by Dr. Browne, see here.  58:00 – Darwin's The Expression of the Emotions in Man and Animals.  1:03:00 – Darwin's short article, 'A biographical sketch of an infant.' 1:08:00 – Darwin's The Power of Movement in Plants. For more about Darwin's last book, The Formation of Vegetable Mould, through the Action of Worms, see here. For more about Darwin's "root-brain hypothesis," see our earlier episode. 1:14:00 – For more on Darwin's theory of gemmules and pangenesis, see here. 1:15:00 – For more on Darwin's substantial archive, see here.    Recommendations Darwin and the Barnacle, Rebecca Stott Natural Magic, Renée Bergland   Tile art credit: Painting by George Richmond (detail)   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com. For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).

  6. Jun 20

    The sparkling deep

    It's tempting to see bioluminescence as an oddity, one of those rare eccentricities of life on earth. And, on land, maybe that's true. But our planet is mostly water, and out in the open ocean bioluminescence is utterly commonplace. Creatures of all shapes and sorts sparkle and glow, glitter and pulse. But what are these displays for? Why did they evolve? How did light become the currency of the deep?   My guest today is Dr. Sönke Johnsen. Sönke is a Distinguished Professor of Biology at Duke University, where he and his research group study the visual ecology of the ocean. He's the author of a number of books: most recently Into the Great Wide Ocean, about life in the pelagic realm, and The Radiant Sea, a photographic tour of bioluminescence and color, written in collaboration with Dr. Steven Haddock.  Here, Sönke and I talk about the open ocean: the most common habitat on our planet, yet one that many people will never experience. We consider the curious distribution of bioluminescence— rare on land, exceptionally prevalent in the ocean, and all but absent in freshwater. We talk about how bioluminescence seems to have evolved—many, many times over in fact. We survey the functions of making light in the deep—from counter-illumination to courtship to revenge. Finally, we consider what Sönke takes to be the biggest remaining puzzle about bioluminescence at sea.  Alright friends, if you're enjoying Many Minds, we ask (humbly) if you would think about rating us, reviewing us, leaving us a comment, boosting us on social media, or perhaps haranguing your friends—relentlessly—until they give us a listen.  Without further ado, onto my conversation with Dr. Sönke Johnsen. Enjoy!    Notes 3:30 – The scientific report by Dr. Johnsen and colleagues describing the bioluminescent octopus, Stauroteuthis syrtensis.   12:00 – A popular article on the bristlemouth. The article reports a scientist's estimate of "as many as a dozen [bristlemouths] per square meter of ocean." 15:00 – A recent discussion of the "burglar alarm hypothesis."  18:00 – The website for the Johnsen Lab at Duke University.  24:00 – A chart and discussion of the depth zones of the ocean. 29:30 – A study by Séverine Martini and Steven Haddock quantifying the prevalence of bioluminescence at different depths. A popular write-up of the same study.  33:00 – A popular article on vertical migration in the ocean, also called "diel vertical migration." A recent scientific study of the phenomenon.  39:00 – A recent article on the evolution of bioluminescence.  45:00 – For detailed scientific discussion of the physical basis of bioluminescence, fluorescence, and other phenomena we discuss, see Dr. Johnson's book, The Optics of Life.   52:00 – For previous episodes on the use of sound in the animal kingdom, see here and here. For our previous episode on electroreception and electric ecology (including in marine organisms), see here.   57:00 – For more on the functions of bioluminescence, see here. For a report of a recently discovered function of bioluminescence, see here.  1:03:00 – An article by Dr. Johnsen about the different colors of bioluminescence present in the deep sea. 1:05:00 – A video of ostracod mating displays.   1:08:00 – For our recent episode on cave art, see here. 1:16:00 – For our earlier episode on firefly synchronization, see here.     Recommendations Website and review article by Steven Haddock The lab of Todd Oakley Below the edge of darkness, Edie Widder   Tile art credit: Image by Georgi Kalaydzhiev via Unsplash   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com. For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).

  7. Jun 5

    Is Man the Hunter just a myth?

    There's a story about of our past that you know well. It goes like this: At some point earlier in human evolution, we started to hunt. Men in particular—perhaps channeling some deep-seated aggressive impulses—began to seek out big game. This new food source, this bonanza of calories, was what allowed our brains to expand. It changed our bodies and our societies and sent our species off on a whole new track. In short, Man the Hunter made us human. This story—told in different versions, with different points of emphasis—has circulated for decades. It's been debunked and revived, rejected and reimagined. What is the history behind the Man the Hunter idea? How does it square with our current understandings of evolution? Is it, in fact, pure fiction? My guest today is Dr. Vivek Venkataraman. Vivek is an evolutionary anthropologist at the University of Calgary, and an editor-in-chief of the journal Hunter Gatherer Research. He and his collaborators recently published an article on the different layers and meanings of the Man the Hunter idea. Here, Vivek and I lay out those meanings. We talk about how the phrase refers, first, to that popular myth about our evolution, but also to a landmark scientific conference in the 1960s, and to a major finding of research on contemporary hunter-gatherer groups—namely, that men generally do do most of the hunting. We do a little crash-course on the field of hunter-gatherer research, including the kinds of questions it asks and frameworks it uses. We dig into some of the key ingredients of the Man the Hunter myth: the idea that we have aggressive tendencies, the idea that only men hunt, and the idea that hunting played a transformative role in our evolution. We walk through three recent, high-profile studies challenging Man the Hunter ideas in various ways. And we talk about the ever-present danger of projecting our current norms and ideals back in time. Along the way, Vivek and I touch on 2001: A Space Odyssey; reasons why contemporary hunter-gatherers may differ from the hunter-gatherers of long ago; giant sloths; extractive foraging; the case of the Agta, a society in which women do engage in big-game hunting; the forest people and the fierce people; risk and cooperation in sexual divisions of labor; persistence hunting and endurance activities; caregiving and cognition; and honey. Alright friends, I think you'll enjoy this one. On to my conversation with Dr. Vivek Venkataraman.   Notes 3:30 – The article by Dr. Venkataraman and colleagues, 'The Meaning and Dividends of Man the Hunter.' Commentaries on the article can be read here. A recent popular essay by Dr. Venkataraman on the same ideas. 5:00 – Raymond Dart's "killer ape" was originally laid out in a 1953 article 'The Predatory Transition from Ape to Man' (unavailable online) and then developed in Robert Ardrey's book, African Genesis.  8:30 – The "dawn of man" scene from 2001: A Space Odyssey. 16:00 – The 1966 conference titled 'Man the Hunter' resulted in a 1968 volume of the same name. 27:00 – A philosophical discussion of the use of the "ethnographic analogy" in reconstructions of the past. The paper describing the "tyranny of the ethnographic record." 33:00 – The classic ethnography, The Forest People; the classic ethnography, Yanomamö: The Fierce People. 36:00 – The article by Chris Boehm on the concept of "reverse dominance hierarchy." See also his book Hierarchy in the Forest. 37:00 – Our earlier episode with Brian Hare.  38:00 – Steven Pinker's widely read and contested book, The Better Angels of our Nature.  44:00 – A study of the Agta, a society in which women hunt for big game.  48:00 – The paper by Judith Brown about childcare and subsistence. A paper by Haneul Jang and colleagues about how young girls help mothers during foraging.  55:00 – For a book-length treatment of hunting in evolution and history, see Matt Cartmill's A View to a Death in the Morning. 1:01:00 – For the 2023 paper by Anderson and colleagues on the prevalence of women's hunting across cultures, see here. For Dr. Venkataraman and colleagues' commentary on the paper, see here. For the related study by Dr. Venkataraman and colleagues about women's hunting, see here. 1:05:00 – For the 2020 paper by Haas and colleagues about female hunters of the Americas, see here. 1:13:00 – For the academic 'Woman the Hunter' papers by Lacy and Ocobock, see here (for the physiology paper) and here (for the archaeology paper). For their article in Scientific American, see here. For an interview on the podcast On Humans with Cara Ocobock, see here. 1:14:00 – For the recent study on persistence hunting in the ethnographic record, see here. 1:20:00 – The authors of the three critiques discussed here have all written commentaries on Dr. Venkataraman and colleagues' paper. These commentaries and others can be read here.  1:24:30 – For the commentary emphasizing the links between popularization and science, by Nadine Weidman, see here. 1:28:00 – For our earlier episode with Alison Gopnik, in which we discuss the overlooked cognitive capacities involved in caregiving, see here. 1:29:00 – For papers on the importance of honey in human evolution, see here and here. For one of Dr. Venkataraman's own honey-related studies, see here.   Recommendations Creatures of Cain, by Erika Lorraine Milam The Killer Instinct, by Nadine Weidman   Tile art credit: Image via Biodiversity Heritage Library   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com. For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).

  8. May 22

    Babies, dogs, and the riddles of word learning

    It's kind of astonishing, really, that kids ever learn words. Each one poses a little riddle. Does this sound string refer to a person? A category of things? Or maybe some other feature of the blooming, buzzing world? And yet word learning happens. In fact, we now know it begins earlier in infancy than we realized. And we now know, further, that dogs (or at least some dogs) understand words as well. So how does this happen? What do babies and dogs really know about words? And how might we go about figuring this all out? My guests today are Dr. Elika Bergelson and Dr. Claudia Fugazza. Elika is an Associate Professor in the Department of Psychology at Harvard University, where her lab studies how infants learn language. Claudia is a Researcher at Eötvös Loránd University in Hungary, where she and her collaborators study dogs who are especially gifted word learners.  In this conversation, Elika, Claudia, and I talk about the thorny question of what it means to understand a word—and whether there are different degrees or kinds of understanding. We consider the challenges posed by different types of words—by nouns, by names, by verbs, by function words, size terms, and more. We discuss why it is that some dogs are so good at learning words, and why infants of a certain age seem to get so much better at it. We talk about learning in different contexts and situations. And we circle the question of how different word learning really is in dogs and babies.  Alright friends, before we get to it, one tiny ask: If you've been enjoying Many Minds, you can help us grow by leaving a review or comment or a rating, or by sharing us with a friend or colleague. We would greatly appreciate the support! Without further ado, on to my interview with Claudia Fugazza and Elika Bergelson. Enjoy!   Notes 3:30 – A paper on infants' understanding of proper nouns like "Mommy." 6:00 – For our earlier audio essay on names across the animal kingdom, see here. 11:00 – For Dr. Bergelson's early study showing that 6-month-old infants already understand the meanings of some words, see here. 13:30 – For more on the "comprehension boost" in infants after age one, see Dr. Elika's paper here. 16:30 – For Dr. Fugazza and colleagues' first studies on gifted word-learning dogs, see here and here. 20:00 – See earlier studies on Rico and Chaser. 24:00 – For more on the qualitative changes that infants may undergo as they learn to learn words, see a paper by Dr. Bergelson and a colleague here. 30:00 – A study by Dr. Fugazza and colleagues comparing personality profiles and playfulness of gifted word learner dogs and typical dogs. 31:30 – A recent New York Times article consoling readers that having a "dumb" (i.e., non-gifted) dog is okay. 39:30 – A study by Dr. Fugazza and colleagues showing that dogs can extend labels of toys ("pull," "fetch") to new objects that are used in the same way. 43:00 – A study by Dr. Bergelson and a colleague on how broadly (or narrowly) infants apply labels like "foot" or "juice." A study by Dr. Bergelson and colleagues looking at how familiarity affects infants' understanding of words. 52:00 – For an example of a study on the so-called noun bias in early word learning, see here. For work on the (lack of) a noun bias in Tseltal infants, see here. For a sample discussion of the so-called shape bias, see here. 54:00 – For Dr. Fugazza and colleagues' work on dogs' biases toward shape or texture when generalizing about objects, see here. 57:00 – For the work by Asifa Majid (former guest!) on odor words in Jahai, see here. For the work on scent-tracking in humans, see here. 1:02:00 – On "dog-directed speech" and its consequences, see here and here. For comparisons of dog- and infant-directed speech, see here and here. 1:04:00 – For the study finding that Tseltal-speaking children learn honorific terms (which are never addressed to them), see here. 1:06:00 – For the study by Dr. Fugazza and colleagues, "examining exclusion-based choice" in dogs, see here. For the study by Dr. Fugazza and colleagues showing that gifted word learner dogs can learn by over-hearing labels, see here. 1:10:00 – For the study showing that children seem to request labels for objects by pointing to them, see here. 1:12:00 – For some of the first scientific studies on the use of soundboards for communication in dogs, see here and here. For our earlier episode with Dr. Federico Rossano discussing some of this research, see here.   Recommendations 'The Invention of Language by Children,' by Lila Gleitman and Elissa Newport 'Concept-based word learning in human infants,' by Jun Yin and Gergely Csibra 'Syntactic bootstrapping as a mechanism for language learning,' by Mireille Babineau et al. The Genius Dog Challenge YouTube channel   Tile art credit: Image by Picsea via Unsplash   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: manymindspodcast@gmail.com. For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).

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About

Our world is brimming with beings—human, animal, and artificial. We explore how they think, sense, feel, and learn. Conversations and more, every two weeks.

Information

  • Creator
    Kensy Cooperrider – Diverse Intelligences Summer Institute
  • Years Active
    2020 - 2026
  • Episodes
    169
  • Rating
    Explicit
  • Copyright
    © Diverse Intelligences Summer Institute 2020-2025
  • Show Website
    Many Minds

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