A caterpillar that haunts spiderwebs, solving the last riddles of a famed friar, and a new book series
First up on the podcast, bringing Gregor Mendel’s peas into the 21st century. Back in the 19th century Mendel, a friar and naturalist, tracked traits in peas such as flower color and shape over many generations. He used these observations to identify basic concepts about inheritance such as recessive and dominant traits. Staff Writer Erik Stokstad talks with host Sarah Crespi about the difficulty of identifying genes for these phenotypes all these years later. We also hear some other stories from the plant world, including evidence that wavy fields are more attractive to insects and a tree benefits from being struck by lightning.
Next on the show, a carnivorous caterpillar that haunts spiderwebs, camouflaged in its insect prey’s body parts. Producer Kevin McLean talks with Daniel Rubinoff, a professor in the department of plant and environmental protection sciences at the University of Hawaii at Manoa, about how such an adaptation might have evolved and the overlooked importance of insect conservation.
Finally, we kick off our 2025 books series on the science of death and dying. Books host Angela Saini and books editor Valerie Thompson talk about the challenges of putting this year’s list together and the reads they are looking forward to.
This week’s episode was produced with help from Podigy.
About the Science Podcast
Authors: Sarah Crespi; Erik Stokstad; Kevin McLean; Valerie Thompson; Angela Saini
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46:52
Linking cat domestication to ancient cult sacrifices, and watching aurorae wander
First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi to talk about how an Egyptian cult that killed cats may have also tamed them.
Next on the show, we hear about when the aurorae wandered. About 41,000 years ago, Earth’s magnetic poles took an excursion. They began to move equatorward and decreased in strength to one-tenth their modern levels. Agnit Mukhopadhyay, a research affiliate at the University of Michigan, talks about how his group mapped these magnetic changes, and what it would be like if such a big change took place today.
This week’s episode was produced with help from Podigy.
About the Science Podcast
Authors: Sarah Crespi; David Grimm
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27:36
The metabolic consequences of skipping sleep, and cuts and layoffs slam NIH
First up on the podcast, ScienceInsider Editor Jocelyn Kaiser joins host Sarah Crespi to discuss big changes in science funding and government jobs this month, including an order to cut billions in contracts, lawsuits over funding caps and grant funding cancellations, and mass firings at the National Institutes of Health.
Next on the show, taking sleep loss more seriously. Jennifer Tudor, an associate professor of biology at Saint Joseph’s University, talks about how skipping out on sleep has many metabolic consequences, from reducing protein synthesis in our brains to making our muscles less efficient at using ATP. Her new review in Science Signaling suggests that given these impacts, we should stop putting sleep last on our to-do lists.
This week’s episode was produced with help from Podigy.
About the Science Podcast
Authors: Sarah Crespi; Jocelyn Kaiser
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29:34
Talking about engineering the climate, and treating severe nausea and vomiting during pregnancy
Geoengineering experiments face an uphill battle, and a way to combat the pregnancy complication hyperemesis gravidarum
First up on the podcast, climate engineers face tough conversations with the public when proposing plans to test new technologies. Freelance science journalist Rebekah White joins host Sarah Crespi to discuss the questions people have about these experiments and how researchers can get collaboration and buy-in for testing ideas such as changing the atmosphere to reflect more sunlight or altering the ocean to suck up more carbon dioxide.
Next on the show, hyperemesis gravidarum—severe nausea and vomiting during pregnancy—is common in many pregnant people and can have lasting maternal and infant health effects. This week, Marlena Fejzo wrote about her path from suffering hyperemesis gravidarum to finding linked genes and treatments for this debilitating complication. For her essay, Fejzo was named the first winner of the BioInnovation Institute & Science Translational Medicine Prize for Innovations in Women’s Health. Fejzo is a scientist at the Center for Genetic Epidemiology in the department of population and public health sciences at the University of Southern California’s Keck School of Medicine.
This week’s episode was produced with help from Podigy.
About the Science Podcast
Authors: Sarah Crespi; Rebekah White
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32:56
Studying urban wildfires, and the challenges of creating tiny AI robots
First up this week, urban wildfires raged in Los Angeles in January. Contributing Correspondent Warren Cornwall discusses how researchers have come together to study how pollution from buildings at such a large scale impacts the environment and health of the local population.
Next on the show, Mingze Chen, a graduate student in the mechanical engineering department at the University of Michigan, talks with host Sarah Crespi about the challenges of placing artificial intelligence in small robots. As you add more sensors and data, the demand for computing power and energy goes up. To reduce the power demand, Chen’s team tried a different kind of physics for collecting and processing data using a type of resistance switching memory device called a “memristor.”
This week’s episode was produced with help from Podigy.
About the Science Podcast
Authors: Sarah Crespi; Warren Cornwall
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