Explore every episode of the podcast Big Biology

How can organismal choices drive adaptive evolution? Can plasticity act as a kind of selection?

In this episode, we talk with Pim Edelaar, a professor in the Department of Molecular Biology and Biochemical Engineering at the University Pablo de Olavide, Spain. He’s also the author of the new book The Selective Organism: An Expanded Theory of Adaptive Evolution. In the book, Pim proposes that in addition to natural selection there might be a “second driver” of adaptive evolution. We discuss the book with Pim, explore how non-genetic inheritance and plasticity underpin the theory, and talk about what implications this expanded perspective has for research. If after listening to the episode you’re interested in reading The Selective Organism, the digital version is free to download.

Cover art by Brianna Longo.

How do you find an invasive species that no net can catch? What happens to the scientist whose research samples end up in federal court?

In this episode, we talk with David Lodge, a freshwater ecologist at Cornell University and past president of the Ecological Society of America. In 2009, David’s lab detected invasive carp from DNA in bottles of Illinois River water, including above the electric barrier meant to keep the carp out of the Great Lakes. That result helped found the field of environmental DNA, and it brought congressional testimony, a Supreme Court filing, and five hours of unfriendly questioning on the witness stand. Drawing on David’s recent retrospective in the journal Environmental DNA, we follow the science from a cup of water to the courtroom, visit the Wisconsin lakes where the invasive crayfish he has watched for more than forty years are now collapsing on their own, perhaps driven by a parasite new to science, and ask what it takes for science to inform policy without pretending to drive it.

Cover art by Brianna Longo.

What was distinctive about Bob Ricklefs’ mentorship style, and how did he influence his students and collaborators? What were Bob’s major contributions to biology, and how did these ideas leave a lasting legacy on the field?

In this episode, we commemorate the life and work of Bob Ricklefs, who passed away recently. Bob was a giant in the fields of ecolo…

How have flowers shaped the modern world? Why do we and many other species have such intimate and long-term relationships with them?

On this special episode, we talk with David George Haskell, a writer and biologist. We discuss his most recent book, How Flowers Made our World, which explores the creative powers of flowering plants. Big Biology blogger and Biology PhD student, Clayton Glasgow, interviews David as an outreach project for the Young Voices of Science program. They discuss how flowers have played key roles in many ecosystems, the genomic innovations that underpinned the success of flowering plants, and the significant relationship between humans and flowers.

Cover art by Brianna Longo.

When a bee visits a flower, what decides the match? How can a neutral model explain community assemblages? Why are long-term ecological studies so important?

In this episode, we talk with Diego Vázquez, a community ecologist at CONICET in Mendoza, Argentina, who has spent his career mapping the networks of interaction between plants and pollinators. Textbooks still teach coevolution as tight, faithful pairs, but Diego’s work tells a different story, that specialists mostly interact with generalists, and the best predictor of pollinator visits to plants turns out to be not matching traits or shared ancestry but abundance. Much of the structure ecologists prize in these networks can emerge from “neutral” models that know only who is common and when. We dig into why predicting these interactions remains hard, what his twenty-years of data on declining solitary bees is showing, and what it takes to keep long-term ecology alive in Argentina after deep cuts to science funding.

Cover art by Brianna Longo

What have so many influential scientists been at some time been ridiculed and disbelieved by their peers or institutions? What reforms could foster bolder and more innovative science?

In this episode we talk with Matt Kaplan, a science correspondent at The Economist and author, about his most recent book I Told You So! Scientists Who Were Ridiculed, Exil…

How do hormones help animals cope with stress, seasons, and climate change? What is allostasis?

In this episode, our guest is John Wingfield, Emeritus Professor of Physiology and Behavior, at the University of California, Davis. John helped develop many fundamental hypotheses in the field of endocrinology through his work on wild bird populations, in particular the white-crowned sparrow. Fran Bonier, a former PhD student of John’s and now Professor of Biology at Queen’s University in Kingston, Ontario, also joined us for the chat.

We talk with John about how he got interested in understanding wildlife endocrinology, and discuss how he helped formulate the “challenge hypothesis”, “emergency life history hypothesis”, and the concept of “allostasis”. And at the end, John gives some advice to early career researchers, based on his experience as the head of the Biology Directorate at the National Science Foundation.

Cover art by Brianna Longo.

How do you experimentally test theories of island biogeography? Who were the Tallahassee Mafia? Why do some introduced species become invasive and reshape ecosystems?

On this episode, we bring you a live recorded conversation we had with Daniel (Dan) Simberloff at the Laurel Theater in Knoxville, Tennessee. Dan Simberloff is the Nancy Gore Hunger Chair o…

How is climate change affecting the movements of small predators in the sea? How do diatoms affect ocean carbon cycling? How do Cassiopea jellyfish act like ecosystem engineers?

On this episode, we bring you a live conversation from the recent University of South Florida Climate Teach-In where Marty interviewed his colleague, Associate Professor from the…

What role do genes play in complex human behaviors? If behavior is largely shaped by a combination of experience and luck, how should we rethink blame, punishment, and forgiveness?

In this episode, we talk with Kathryn Paige Harden, a Professor of Psychology at the University of Texas at Austin, where she leads the Developmental Behavior Genetics lab and…

What are eco‑evolutionary dynamics and how can we study them in the wild? Why do some fish evolve placentas?

In this episode, we talk with David Reznick, Distinguished Professor of Biology at the University of California, Riverside. David has spent much of his career studying Trinidadian guppies to understand adaptation in the wild. In our conversation, …

How are camera traps used in the conservation of cryptic species such as the African golden cat? How can local communities be engaged to foster the success of conservation?

In this episode, we talk with Mwezi Mugerwa, winner of the 2025 Indianapolis Prize Emerging Conservationist, a National Geographic Explorer, and President of the Society for Conservat…

How did life originate on Earth? Why is it that eukaryotes but not bacteria or archaea evolved large size and complicated body forms? How likely is that life has arisen independently elsewhere in the universe?

On this episode, we talk with Nick Lane, a biochemist and professor at University College London, about his 2015 book The Vital Question. Nick argues that protolife arose in alkaline hydrothermal vents deep in the early Earth’s oceans. The key early event was the evolution of metabolism powered by proton gradients. In other words, metabolism came first, and all of the rest of traits we think of as universal to life -- DNA, RNA, proteins, transcription, and translation -- came later. He also invokes an energetic perspective on the origin of eukaryotes, arguing that the acquisition of mitochondria distributed energy production through the cell volume, provided vastly more energy per gene, and allowed the dramatic expansion of eukaryotic genomes that in turn support the astonishing diversity of eukaryotic forms we see today.

This episode was originally aired in October 2020.

How and when did humans domesticate the horse? How did horses shape our language, culture, and history?

On this episode, we talk with Dr. Ludovic Orlando, a research director for the French National Center for Scientific Research and founding director of the Centre for Anthropobiology & Genomics of Toulouse. Ludovic is also the author of the new book Hor…

How do animals use medication and can humans learn from them? What are the evolutionary consequences of animal self-medication?

In this episode, we talk with Jaap de Roode, the Samuel Candler Dobbs Professor of Biology at Emory University and author of the book Doctors by Nature: How Ants, Apes, and Other Animals Heal Themselves. Jaap’s research on monar…

What impact has the Trump administration had on biology and the scientific community? How do scientists study genomic adaptation and vulnerability?

On this episode we talk with Dr. Katie Lotterhos, Associate Professor in the Department of Marine and Environmental Sciences at Northeastern University. Katie is also the Secretary for the American Society of Naturalists, and she helped to coordinate and implement a survey of scientists to understand the impacts of the Trump administration’s policies on ecology, evolution, marine science and environmental science. In the first half of the episode, we talk with Katie about carrying out this survey, discuss some of the main themes of the results, and how the results can be used in the future. Then, we talk about Katie’s research where she uses oysters as a study system to understand the genomic basis of local adaptation and genomic vulnerability of populations to environmental change.

Cover art by Brianna Longo.

What’s the value of risk-taking in research? How is studying the mechanisms of transgenerational inheritance in C. elegans unorthodox and insightful? How can AI help improve aspects of biology, namely the peer review process?

In this episode, we talk with Oded Rechavi, professor in the Faculty of Life Sciences and the Sagol School of Neuroscience at Tel …

How do non-adaptive processes shape biological diversity and complexity? What is effective population size and what important role does it play in evolution?

On this episode of Big Biology, we talk with Dr Mike Lynch, Regents Professor and the Director of the Biodesign Center for Mechanisms of Evolution at Arizona State University. We talk with Mike abou…

Where, when, and how did Homo sapiens appear? What do we know about the complex set of ancestral hominins that preceded us? How recently did other hominin lineages live and what happened to them?

On this episode, we talk with Kate Wong, a senior editor at Scientific American, about her article, The Origin of Us. Our understanding of hominin evolution over the past several million years has been transformed by exciting new fossil finds and new DNA sequence data. We talk with Kate about the biggest news, the luxuriant evolutionary bush from which our ancestors emerged in Africa, and her favorite fossil species.

Find more articles from Kate here: Stories by Kate Wong

Cover Art by Brianna Longo

What can we learn from the COVID-19 pandemic, and how do we apply that knowledge moving forward?

On this special episode of Big Biology, we’re bringing you the highlights from a conference called “Covid Conversations,” which was hosted at the University of South Florida last December. The event brought together scientists, public health experts, medical doctors, historians, students, philosophers, and community leaders—for one big, open conversation about COVID-19. The episode shares the different perspectives these speakers had on the virus, the pandemic response, and our future preparedness to disease.

This episode is hosted by Caroline Merriman, a Big Biology intern and a research fellow with the Association of Public Health Laboratories program, and Kailey McCain, a PhD student in Marty’s lab at USF and a former Big Biology intern.

Cover art by Keating Shahmehri

How can grad students advocate for science policy? How can science communication make research more accessible and inclusive?

On this episode of Big Biology, we bring back our “Student Spotlight” segment. We talk with JP Flores, a PhD student studying bioinformatics and computational biology at UNC Chapel Hill. JP does more than just research, he is also deeply engaged in science communication and hosts the award-winning podcast From where does it STEM? He has also worked in science policy as an intern at the NIH and is part of the Science Policy and Advocacy Group at UNC. Earlier this year, JP helped to organize the Stand Up for Science 2025 protest and as a result of the movement, co-founded the non-profit Science for Good.

What role does media play in conservation efforts and inspiring future generations of scientists? How can science communication make scientific knowledge accessible to the public, especially for communities underrepresented in science?

On this episode, we talk with Dr Rae Wynn-Grant a researcher at the Bren School of Environmental Science and Management …

What biological "superpowers" do marine invertebrates possess? What challenges do they face and will their resilience protect them from anthropogenic change?

On this episode, we talk with Drew Harvell, Professor Emerita of Ecology and Evolutionary Biology at Cornell University, Affiliate Faculty at the University of Washington, former Science Envoy for O…

Why is the National Science Foundation important? What is the potential impact of the proposed budget cut to the NSF? How can we stand up for federally-funded science in the US?

In this episode, we talk with Bill Zamer and Sam Scheiner, two former BIO program officers at the NSF. Much of the conversation focuses on the recently proposed 56% budget cut to the NSF and what the impacts of such a spending cut would be on science in the US. We discuss how the NSF came to be, the proposal selection process, and some of the scientific breakthroughs that have come out of the NSF-supported basic research. The episode also has suggestions of how to show your support for the NSF including calling your representatives, talking about the importance of the NSF and sharing this episode widely, and taking action suggested by the coalition SaveNSF.

Watch how our amazing artist Keating Shahmehri created the cover art for our last episode "Feel the heat”.

How do scientists measure thermal tolerance and predict organismal responses in the wild? What kind of other data is needed to make predictive models better at helping us understand species responses to high temperatures?

In this special episode, roving podcaster Cameron Ghalambor went on the road to the University of Granada in Spain where he spoke about his own research in the symposium, Predictive Ecology in a Warming World. While there, Cam was inspired to get a few of the other experts into a room to talk about the broader field of predictive ecology, and this episode is the result. Guests on the episode include Jancitha Ellers, Professor at Vrije University of Amsterdam, Enrico Rezende, Associate Professor at Pontifical Catholic University of Chile, and Wilco Verberk, Associate Professor at Radboud University. Cam and colleagues discuss the methods and tools they use to measure heat tolerance in insects, fish, and other ectothermic animals and how collecting and sharing trait data is important to inform and implement predictive models.

Cover art by Keating Shahmehri

How are new technologies allowing biologists to look beyond simple genetic variation to whole genome structure? What is a pangenome?

In this episode, we talk with Scott Edwards, the Alexander Agassiz Professor of Zoology and Curator of Ornithology at Harvard University. On this episode, we talk to Scott about the new ways we can describe and understand l…

In this post-match chat, Marty and Cam discuss our most recent episode “A direct hit”, with guest Holden Thorp. This is a quickly evolving situation, and on Friday last week, a federal judge continued to block the cut to the NIH indirect cost rate. And just a few days ago, Holden wrote another editorial Come together, right now. He writes about the continued onslaught of cuts, firings, and changes to the science system in the United States, and how members of the scientific community can respond.

Will a change in policy at the National Institutes of Health derail science in the US? How does the “indirect cost rate” for federal research grants fuel research?

In this episode, we talk with Holden Thorp, a chemist and editor-in-chief of Science, about his recent editorial A Direct Hit. In it, he writes about the NIH announcing a significant cut to their indirect cost rate and the consequences to science in the US if this change takes effect. “Indirect” or “overhead” costs are the portions of grants that are allocated to support research grant but aren’t for the research itself. Things like grant administration, compliance, and research infrastructure are covered by these funds (check out the comic below by Matteo Farinella for details). These costs have traditionally been shared by universities and the federal government, but with the proposed cut to the indirect cost rate, universities may need to make up for the deficit or change their operations. We discuss with Holden how this change could have widespread impacts on scientific research as well as the economy including our competitiveness on the global stage.

Comic by Matteo Farinella (Instagram, Substack)

Here’s a little sneak peek into what goes on behind the scenes when we choose a title for an episode. In this snippet, Cam and Marty discuss the title of our most recent episode: “Beaks on (fitness) peaks.”

Which factors lead to the evolution of reproductive isolation? What role does hybridization play in speciation? Why are there so many bird species in the tropics?

In this episode, we host Trevor Price, a Professor in the Department of Ecology and Evolution at the University of Chicago and a Fellow of the Royal Society to talk about the evolutionary proce…

How does human behavior contribute to disease transmission? What can our history with infectious disease teach us about modern epidemics?

On this episode, we talk with Sabrina Sholts, Curator of Biological Anthropology in the Department of Anthropology at the Smithsonian’s National Museum of Natural History (NMNH). Sabrina’s research explores the interse…

What role does development play in evolution? How can biology incorporate a broader, more complex definition of what it means to be an organism?

In this episode, we talk with Scott Gilbert and Tobias Uller, two of the authors who wrote Evolution Evolving: The Developmental Origins of Adaptation and Biodiversity. Tobias is a professor of Biodiversity and …

How have organisms changed the Earth and what can humans learn from its deep past?

On this episode, we talk with Stephen Porder, a Professor of Ecology, Evolution, and Organismal Biology and the Associate Provost for Sustainability at Brown University. Stephen is also the author of Elemental: How Five Elements Changed Earth’s Past and Will Shape Our Futu…

How do natural selection and sexual selection interact? What can observing adaptive radiation in the wild teach us about evolution?

On this episode, we talk with Dale Broder, an Assistant Professor at American University, and Robin Tinghitella, an Associate Professor at the University of Denver. They study the Pacific field cricket, a fascinating organism that exemplifies both adaptive radiation and the interaction of natural selection and sexual selection. This species uses song for mate attraction, but the song also attracts Ormia ochracea, a fly that parasitizes the cricket. The fly recently invaded areas where the cricket is common and in response, some crickets evolved differentsongs and even silence. We talk with Robin and Dale about how their research team characterizes these cricket songs and the different wing morphologies that produce the songs. We also discuss the role of female preference (or lack thereof) in the evolution of different mating songs and how remarkably rapidly this song evolution occurred.

This episode was supported by a grant to Dale and Robin from the National Science Foundation.

Cover art: Keating Shahmehri.

What are spiny mice and why are they so social? What about their brains makes them gregarious? Might network neuroscience be a useful framework for understanding spiny mice behavior?

On this episode, we talk with Aubrey Kelly, an Assistant Professor in Psychology at Emory University. Aubrey is a behavioral neuroscientist working on many vertebrate specie…

What was life like in wartime England for a young female scientist? What about living and doing research for months each year with your daughters and husband on a remote island?

On this episode, we talk with Rosemary Grant, Emeritus Professor of Ecology and Evolutionary Biology at Princeton University. Rosemary is best-known for her foundational research on the Darwin’s Finches of the Galapagos Islands, conducted in collaboration with her husband, Peter. Our conversation focuses on Rosemary’s new autobiography “One Step Sideways, Three Steps Forward: One Woman’s Path to Becoming a Biologist.” We first discuss her upbringing in the Lake District during WWII, and how her family and the people she met there, as well as later scientific mentors like Conrad Waddington, shaped her path to science. Then, we talk about her work with Peter on the finches of Daphne Island, discussing their contributions to evolutionary biology. Rosemary also describes the joys of raising her girl in the Galapagos and gives advice to young people thinking about a career in biology.

Art by Keating Shahmehri. Find a transcript of this episode on our website.

How do biologists study the influence of heat on organisms and how can this be applied to the study of climate change? What impacts mountaineer survival at high altitudes?

On this episode of Big Biology, we talk with Professor Emeritus at University of Washington and recently elected member of the National Academy of Sciences, Ray Huey. Ray is well known…

Can we study evolution in the wild? Are some species “super-evolvers”?

On the episode, we talk with Alison Derry, a professor of biology at the University of Quebec in Montreal, and Andrew Hendry, a professor in the Department of Biology at McGill University, Canada. This episode is the second we’ve done on the team’s work, and Andrew was also a guest on our first episode in the series. This conversation was recorded live in front of an audience at Kenai Peninsula College, in Soldotna, Alaska. 

The college is just a few miles from the lakes where Alison, Andrew, and many of their colleagues and students carry out experiments on threespine sticklebacks. We ask Alison and Andrew about their research on the rapid evolution of these fish, which were recently reintroduced to the lakes, and how the introduction of two distinct stickleback ecotypes are affecting the evolution of zooplankton in the lakes. We also discuss the central position of sticklebacks in the food web and how the sticklebacks are impacting the ecosystems now as well as how they likely impacted the lakes in the evolutionary past. 

Art by Keating Shahmehri. Audio from Hunter Morrison at KDLL. Find a transcript of this episode on our website.

What is mutation bias and how can scientists study it? How does changing a population’s mutation bias influence its evolutionary trajectory?

In this episode, we talk with Deepa Agashe, an Associate Professor at the National Centre for Biological Sciences in Bangalore, India. We first talk with Deepa about mutation bias and how she uses  E. coli to understand it. We then focus on a 2023 PNAS paper about the fitness effects of experimentally changing the mutation bias in E. coli. In this research, Deepa and her team used a strain (MutY) of bacteria containing a mutation that knocks out an important DNA repair enzyme. They then isolated subsequent single mutations produced within both MutY and wildtype lines and studied the fitness effects of those mutations. Surprisingly, more than a third of mutations in the mutant lines were beneficial, and often across several different environments. Zooming out, the big picture is that shifts in mutation bias seem to generate new kinds of mutations that weren’t previously accessible to lineages, and a greater fraction of those may be beneficial in some circumstances.

Art by Keating Shahmehri. Find a transcript of this episode on our website.

This week on Big Biology we're sharing an episode from The Naked Scientists Podcast about how humans lost their tails.

Humans, chimpanzees, gorillas and orangutans do not have tails. It sets us apart from other primates, but suggests that our shared evolutionary ancestors had them. So why did we lose them, and how? Speaking with Chris Smith, from The Naked Scientists Podcast, NYU Grossman School of Medicine's Itai Yanai explains that the way this study began was literally a pain in the "tail" for one of his colleagues...

Credit: The Naked Scientists Podcast

At what levels does causation happen in biology? Are metaphors useful for understanding biology?

In this episode, we talk with Phil Ball, a science writer who was also an editor for the journal Nature for over 20 years. Phil has written over 25 books, but our conversation focuses on his most recent: “How Life Works: A User’s Guide to the New Biology.” In the book, Phil covers a wide-range of topics from cells to proteins to biological agency, and makes the argument that traditional ideas and simplified metaphors in biology often don’t hold up. We talk with Phil about the concept of the selfish gene and unpack what it actually means and when it’s useful. Then we dive into the paradox of how multicellular organisms are composed of multiple levels of agency, yet are complex agents themselves. Phil also discusses the biomedical implications of thinking about cancer as one in many possible states that cells can inhabit across a landscape.

Art by Keating Shahmehri. Find a transcript of this episode on our website.

How should biologists deal with the massive amounts of population genetic data that are now routinely available? Will AIs make biologists obsolete?

In this episode, we talk with Andy Kern, an Associate Professor of Biology at the University of Oregon. Andy has spent much of his career applying machine learning methods in population genetics. We talk with him about the fundamental questions that population genetics aims to answer and about older theoretical and empirical approaches  We then turn to the promise of machine learning methods, which are increasingly being used to estimate population genetic structure, patterns of  migration, and the geographic origins of trafficked samples. These methods are powerful because they can leverage high dimensional genomic data. Andy also talks about the implications of AI and machine learning for the future of biology research. 

Cover Art by Keating Shahmehri. Find a transcript of this episode at our website.

How should we study complex biological networks? How do cells keep time and stay in sync? What does it mean for a network to be resilient?

In this episode, we talk with Rosemary Braun, Associate Professor at Northwestern University in the Department of Molecular Biosciences and a member of the NSF-Simons Center for Quantitative Biology. Rosemary is broadly interested in learning whether “more is different” when it comes to complex molecular networks operating across different temporal and spatial scales. We talk with her about systems approaches to uncovering the “Rules of Life” and about circadian (daily) rhythms. She and her team use machine learning to understand emergent phenomena in networks, with the goal of helping medical professionals target treatments based on an individual patient’s circadian rhythm.

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

How do biologists strike a productive balance between descriptive natural history and manipulative experiments in the lab or field? Should we bring back species to areas where they’ve gone extinct and what values do we use to make these decisions? What is wildness and how do we cultivate it?

On this episode, we talk with Harry Greene, a herpetologist and adjunct professor of Integrative Biology at the University of Texas at Austin, whose distinguished career has spanned decades. Harry is an E.O. Wilson Award recipient and also received the PEN Literary award for his book, Snakes: The Evolution of Mystery in Nature. In the episode, we talk with Harry about the importance of natural history to biology. We also tackle the topic of rewilding, a type of biological restoration that involves translocating species where they still occur to regions where they no longer are found, in order to restore ecosystem function. Harry talks about how his views on rewilding have changed over time, including how rewilding ourselves could improve our health and happiness

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

What is an agent, and does an organism have to be conscious to be one? How does organismal agency affect evolution?

In this episode, we talk with Samir Okasha, a Professor of Philosophy of Science at the University of Bristol. Samir studies fundamental philosophical questions in evolutionary biology, most notably how selection acts on various levels of biological organization. Our discussion focuses on his book “Agents and Goals in Evolution,” in which he unpacks various definitions of agency and outlines their evolutionary implications. We talk about whether genes and groups of individuals can be agents, whether agency is heritable, where variation in agency comes from, and the relationship between agency and adaptation.

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

If the tape of life were replayed, how recognizable would today’s species and ecosystems be? How and why does power increase over evolutionary time? How have humans unleashed so much power, and what are the consequences of that power for life on Earth? 

In this episode, we talk with Geerat Vermeij, a paleoecologist and evolutionary biologist in the Department of Earth and Planetary Sciences at UC Davis. He is a member of the National Academy of Sciences, and has published over 200 papers and five books. Our conversation focuses on his most recent book: “The Evolution of Power: A New Understanding of the History of Life.” In it, he asserts that power, the amount of energy an organism can take up or expend per unit time, has increased steadily during the history of life on Earth. On the episode, we discuss the idea of power, how species evolve more power, and how humans have unleashed more power than any other species (and whether we need to work on curbing this power). 

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

How are cephalopods like us, but also completely alien? How can they become so intelligent when they have such short lives? How do they coordinate a distributed set of brains?

In this episode, we talk with Danna Staaf, a science communicator and marine biologist with a lifelong love of cephalopods. Danna earned a PhD from Stanford University studying baby squid, and she has written several cephalopod-themed books. Our conversation focuses on Danna’s most recent, The Lives of Octopuses and Their Relatives: A Natural History of Cephalopods, a beautiful exploration of the diversity of these wacky, wonderful creatures. We discuss cephalopod evolution, morphology, and reproduction, focusing on several fun facts that you can pull out at your next dinner party.

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

Does biological plasticity have a cost? Are there evolutionary consequences of plasticity and of organisms acting on their environments?

In this episode, we talk with Sonia Sultan, the Alan M. Dachs Professor of Science in the Department of Biology at Wesleyan University. Sonia has spent her career studying the interplay between organisms and their environment. Specifically, she studies how environmental conditions influence the development of organisms, and when and how these developmental trajectories can include niche construction. Sonia refers to this complexity as “entanglement,” genes and environments working together to alter phenotypic expression, but then variation in phenotypic expression feeds back on environments and genes to alter evolution. She put this perspective to the test in a recent paper she coauthored with Mike Wade in the Journal Evolution & Development. In it, Sonia and Mike took a new perspective on the Price equation, finding that niche construction and other forms of organismal agency can change evolutionary outcomes.

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.

How do small, founding populations establish and thrive in new places? What is biocontrol, and how is it carried out responsibly?

In this episode, we talk with Ruth Hufbauer, a Professor of Applied Evolutionary Ecology at Colorado State University about the ways that organisms successfully establish new populations in new places. Ruth uses lab experiments on Tribolium flour beetles to understand how evolution facilitates or impedes the founding of populations. In our conversation with Ruth, we discuss range expansions, species invasions, and biocontrol among other topics. Biocontrol is of particular interest to Ruth, as it can be an effective way to control pests, but also comes with some risks that the control agents themselves get out of control. We also explore the genetic paradox of invasion, and talk about many potential mechanisms that could help populations to quickly spread to a new place.

Cover art: Keating Shahmehri. Find a transcript of this episode on our website.