Ep. 43 – Cynthia Barnett on our world of seashells

In her magnificent new book, The Sound of the Sea, journalist Cynthia Barnett explores the epic and often overlooked history of humanity’s relationship with seashells and the marine mollusks who make them. “This book is about seeing what has gone unseen,” she writes. “The life inside the shell; the Maldivian queens and others left out of history books; the connections between the human condition and that of the sea. Just as we’ve loved seashells for the gorgeous exterior rather than the animals that build them, we’ve loved the oceans as a beautiful backdrop of life rather than the very source.” Photo by Aaron Daye.

As kids, we learn that if you place a shell against your ear, it becomes an auditory portal to the ocean. It’s a powerful illusion as, merged with your ear, the shell creates an echo chamber of noises that transports us to breaking waves and sea breezes, creating a moment of intimacy and wonder between us and the natural world. Much as shells have done throughout human history, as journalist Cynthia Barnett writes in her exquisite new book, The Sound of the Sea: Seashells and the Fate of the Oceans. Since the dawn of humanity, our history has been inextricably tied to the pearlescent, the ribbed, the spiraling, the speckled, and the iridescent calcium carbonate wonders and the unsung animal artists of the ocean that create, inhabit, and leave them behind. 

Shells are the legacies of some of the world’s most inventive and prolific architects: mollusks. Biomineralization, the process by which these animals recycle ocean minerals into hard protective structures, evolved in microorganisms more than 500 million years ago, which eventually gave rise to the tens of thousands of known mollusk species today. These soft-bodied creatures have, quite literally, shaped the world as we know it. As Barnett writes, “We walk on a world of shell.” From limestone aquifers, to chalk, to marble, shells made by soft-bodied animals are the foundation for much of life on earth and are a blueprint for our ever-changing planet, their fossils even documenting Mount Everest’s more humble origins in the seas. 

“Something small reflecting something big – that is what this book is about,” Barnett tells us. “You mentioned that I teach journalism at the University of Florida, and part of what we teach young journalists is the beauty of finding something tiny to tell a big story. And I’ve been teaching that lesson for my whole career, and now, at this more advanced time in my career, I actually did that in a really huge way.” Photo by Betsy Hansen.
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Ep. 22 – Ferris Jabr on reviving the Gaia hypothesis

“When you start really trying to pin down the differences between the inanimate and the animate, that line becomes a lot blurrier and it becomes less clear what we mean by that in a non-colloquial sense,” journalist Ferris Jabr says. Photo by Shawn Linehan.

“One of the many obstacles to reckoning with global warming is the stubborn notion that humans are not powerful enough to affect the entire planet,” writes our guest, journalist Ferris Jabr, in a recent New York Times Opinion piece. “In truth,” he continues, “we are far from the only creatures with such power, nor are we the first species to devastate the global ecosystem. The history of life on Earth is the history of life remaking earth.” 

Jabr argues that the time has come to revive an idea in biology known as the Gaia Hypothesis. Coined in the 1970s, the Gaia Hypothesis proposes that Earth is best understood not as a passive substrate or background to life but as a life form in its own right. It challenges us to rethink the definition of life—and with it, the process of evolution. To understand how sentient creatures have evolved on this planet, it suggests, is not only to grasp that animals are offshoots of an evolutionary tree; it’s to see the tree itself as one element of a dynamic, interrelated organism.

Ferris Jabr has written about how fish feel pain, how chickens perceive time, self-consciousness in elephants, the microbiology of winds and clouds, efforts to revive the American Chestnut, Emily Dickinson’s garden, the impact of moonlight on coral, and the history of humanity’s attempts to harness bioluminescence. He is a contributing writer for The New York Times Magazine and Scientific American, and his work has been anthologized by The Best American Science and Nature Writing series. His debut book about the co-evolution of Earth and life, Symphony of Earth, is forthcoming from Random House.

“When you start really trying to pin down the differences between the inanimate and the animate, that line becomes a lot blurrier and it becomes less clear what we mean by that in a non-colloquial sense,” Jabr says. “… Not only is the environment shaping organisms, but organisms in turn are shaping the environment…so we can think of earth as a kind of living entity.” Photo by Salim Jabr.
Jabr on a reporting trip for a New York Times feature story on ethnobotany, “Could Ancient Remedies Hold the Answer to the Looming Antibiotics Crisis?” “I think too much science writing stops at the level of translation, and there’s a great service in translating science into something that’s lucid and understandable, but I think really good science and non-fiction writing has to go beyond that,” he says. Photo by Kate Nelson.
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Ep. 5 – Lisa Margonelli on the big ideas termites raise about science, technology, and morality

Termite mound photo by Lisa Margonelli
“When I started the book, the working premise of termites was that you could model them with a little robot,” author Lisa Margonelli says. “In a way that goes back to Descartes, who said that animals are soulless automata… What happened was the termites didn’t really act the way they were expected to act once they were in experimental situations… It was a revelation: the termites themselves were individuals.” (Photo by Lisa Margonelli.)

Nobody loves termites. We admire bees and ants for their industry and for their collective decision-making, but, as our guest has written, while parents dress their children in bee costumes and animated ants star in Dreamworks movies, termites are at best crude cartoons on the side of pest control trucks. These bugs are also comparatively unexplored in academic studies. Between 2000 and 2013, about 6000 papers were published about termites. 49 percent were about how to kill them. Despite the fact that termites collectively outweigh humans ten to one, they have lacked a popular writer to bring them to the forefront of public attention. Our guest, Lisa Margonelli, is that writer and champion for the termites.

Lisa Margonelli Photograph
“It was really kind of a revelation: the termites themselves were individuals,” Margonelli says. “To think that there’s a mound of 5 million termites and they’re individuals, that’s kind of a big thing.”

Her new book, Underbug: An Obsessive Tale of Termites and Technology, introduces us to termites and the scientists who study them, so we can see them — and ourselves — in a way we never have before. But this isn’t just a fascinating book about nature’s most underrated bug. What makes this book really special is that it uses termites as a new portal to explore some of the biggest questions we have about technology, power, morality, the nature of science and scientific progress, where we’ve come from, and where we’re going.

Inside a termite mound, photo by Lisa Margonelli
There are at least 3,000 named species of termites. The genus Macrotermes, which is pictured here and found in Africa and south-east Asia, farms and builds its mound around a massive fungus. The maze resembles a giant wriggling brain, with folds and bends that increase the structure’s surface area. “[We] also have a brain that has a distinct architecture,” says Margonelli. “That architecture gives us certain limits to how to think about things without projecting narratives on them. And one of our biggest narratives is that they are little humans in insect suits giving us a demonstration of how life ought to be.” (Photo by Lisa Margonelli.)
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