The fossil record acts as both a memorial to life’s spectacular possibilities and as a warning to humanity about how fast dominance can become forgotten history, according to our guest, Scottish paleobiologist Dr. Thomas Halliday. Halliday’s research investigates long-term patterns in the fossil record, particularly in mammals. In his magnificent and daring new book “Otherlands: A Journey through Earth’s Extinct Worlds,” Halliday translates cutting-edge science into vivid portraits of sixteen fossil sites and their inhabitants extending back 550 million years. We speak with Halliday about his travel guide to the history of multicellular life on Earth, how an animal fossil can be read as a character description, how entire extinct worlds are reconstructed from remnants in the Earth’s crust, and the importance of realizing that our lives and the worlds we know were preceded by hundreds of millions of years of other life and other worlds, “simultaneously fabulous yet familiar.”
In 1995, the U.S. government took unprecedented actions to restore the wolf population of Yellowstone National Park, which it had brutally destroyed seventy years prior. More than thirty wolves from multiple packs were captured in Canada, transported to the park, and released in a grand experiment that would become the most successful wildlife reintroduction effort in history. Our guest, the legendary wolf expert Rick McIntyre, has dedicated his life to those wolves. For the past 26 years, he has observed the park’s wolves nearly every single day, accumulating more than 100,000 sightings. After retiring from the park service, McIntyre – who still watches the wolves daily – penned a gripping series of biographies of Yellowstone’s greatest wolf leaders: Wolf 08, one of the first reintroduced wolves who grew from a runt into a powerful pack leader; his adopted and brave son, Wolf 21, known for his long and successful reign as king of the park’s Druid Peak pack, his deep devotion to his mate, and his unusual benevolence to his defeated rivals; and 21’s nephew, Wolf 302, who started life as an irresponsible Casanova who stole food from pups and slept during battles, but transformed his character and died as a heroic father. In this episode, McIntyre describes the wolves’ unique personalities, the packs’ dynastic dramas, and the exuberant joy that he’s seen through his spotting scope, and explains why federal action is urgently needed to protect these wolves, who are at risk of being massacred once again due to draconian new state laws.
From tiny cowries to giant clams, seashells have gripped human imaginations since time immemorial. In her magnificent new book, The Sound of the Sea, journalist Cynthia Barnett tells the epic history of humanity’s interactions with shells and the soft-bodied animals who make them. These stories of how we have treasured, traded, plundered, and coveted shells reveal much about who we are and who we’ve been, both good and bad. Barnett’s deep research ranges from the awe-inspiring “great cities of shell” of the Calusa people in Florida, to the use of cowrie shells as currency in the Atlantic slave trade, to the decimation of mollusk populations due to climate change and over-harvesting. In this episode, we speak with Barnett about what she describes as our “world of shell,” what shells can tell us about our past, how they have shaped our present, and how the future of shells and their animal makers is tied to our own.
Hedgehogs, despite being consistently voted the most beloved mammal in the United Kingdom, have suffered great population losses as industrial agriculture and other human impacts destroy their hedgerow habitats. Our latest guest, Hugh Warwick, has studied, celebrated, written about, and fought to protect hedgehogs for more than 30 years, leading a groundswell of local and individual action to protect the small animal. We spoke with Warwick about his role as the spokesperson for the British Hedgehog Preservation Society, his writings on the impact of manmade lines on the ability of wild animals to thrive, and the environmental importance of loving your hedgehog.
In “Beloved Beasts: Fighting for Life in an Age of Extinction,” science journalist Michelle Nijhuis chronicles the history of the wildlife conservation movement through the stories of the extraordinary people — both legendary experts and passionate amateurs — who shaped its evolution and expanding ambitions. Nijhuis introduces us to the Swedish scientists who devised the system of naming and grouping species that endures today, the rebel taxidermist who led the fight to save the American bison from extinction, the New York City socialite who demanded that the Audubon Society stop ignoring the gunning down of game birds by sportsmen, and more. These inspiring, dogged, and often flawed characters transformed both the ecological communities and ideas that we inherited. In this episode, we speak with Nijhuis about what we can learn from the stories of conservationists and their efforts to protect the wild animals that they loved, and the possibilities within a more equitable, inclusive fight to defend life.
In 1968, Dr. Bernie Krause was leading a booming music career. A prodigiously talented musician and early master of the electronic synthesizer, Krause was busy working with artists like the Doors and the Beach Boys and performing iconic effects for blockbuster films. Then Warner Brothers commissioned him to create an album incorporating the sounds of wild habitats, so he headed into Muir Woods with his recording equipment. What he heard changed his life and triggered a fifty-year odyssey.
Then and there, Krause decided that he wanted spend the rest of his life recording and archiving the music of wild animals and wild places. He quit Hollywood and began traveling the world. The soundscapes he recorded were full of epiphanies about the origin of our own culture and music, about the profound connectedness of creatures, and about the unseen tolls of human activity. Previous wildlife recordings isolated the calls of individual creatures, but Krause recorded habitats as a whole. He soon proposed a new theory of ecosystem functioning: that each species produces unique acoustic signatures, partitioning and occupying sonic niches such that the singing of all of the creatures in a healthy ecosystem can be heard, organized like players in an orchestra.
Today, Krause’s astonishing archive contains sounds made by more than 15,000 species. It is, as The New Yorker aptly put it, “an auditory Library of Alexandria for everything non-human.” Fifty percent of the recorded habitats no longer exist due to habitat destruction, climate change, and human din. We spoke with Krause about the beauty of and perils facing wild music, the extraordinary science of soundscape ecology, and how sound impacts the welfare of animals. The music in this episode is from Wild Sanctuary (www.wildsanctuary.com).
In the long months we’ve all been confined to our homes, many people have become reacquainted with the vibrant life just outside their doors, finding unexpected joy, companionship, and hope through partaking in the cycles of love and loss that happen in the skies and yards around us. It is this wonder to be found in the natural world, from observing the habits of the nesting chipmunk family under her house, to watching a monarch butterfly break out of its chrysalis, that our guest, Margaret Renkl, captures so evocatively through her writing. In her book, Late Migrations: A Natural History of Love and Loss, and in her weekly opinion columns for The New York Times, Renkl introduces readers to the profound joys and sorrows unfolding in the world around us. In stories about growing up in the South, the heartbreak of losing her parents, finding the perfect squirrel-proof finch feeder, and hearing the chattering of birds in her yard as they warn of a lurking snake, she grounds the extraordinary and uplifts the everyday. In this episode, we talk with Renkl about how loving nature and mourning it go hand in hand, how backyard nature can provide comfort during times of grief, the impetuousness of squirrels, and how she turned her Nashville backyard into a wildlife sanctuary.
Are plants intelligent? Can they think? Can they hear, see, feel, smell and taste? Throughout history, most Western philosophers and scientists answered those questions with a resounding “no.” Plants have long been treated as passive, inanimate objects that form the backdrop to our active lives, rather than highly sensitive organisms with intelligence and agency of their own. But on the cutting edge of modern science, this orthodoxy is being questioned by a group of daring and imaginative scientists — including our guest, Monica Gagliano — who think that plants are radically more sophisticated and sensitive than we’ve been giving them credit for. Gagliano pioneered the field of “plant bioacoustics,” the study of sounds produced by and affecting plants. The results of her groundbreaking experiments suggest that plants may perceive, solve problems, remember, and learn via mechanisms that differ from our own. In this episode, we speak with Gagliano about the profound implications of her discoveries and how listening to plants changed her understanding of the world.
In 2013, a sperm whale washed up dead on Spain’s southern coast. In its ruptured digestive tract, scientists found an entire flattened greenhouse that once grew wintertime tomatoes, complete with plastic tarps, hoses, two flower pots, and a spray canister. The whale also contained an ice cream tub, mattress parts, a carafe, and a coat hanger. And that was just the obvious human refuse. Our toxic chemicals build up in whale blubber over years such that the concentration of pollutants in some whale bodies now far exceeds that of the water surrounding them. In whales’ vastness, the reach of humanity’s destruction is magnified — but so too is the potential of our compassion. In her genius debut book, Fathoms: The World in the Whale, writer Rebecca Giggs asks: Who are we to whales? What does it mean to pollute not just places, but animals? What can understanding our ecological crises through the perspectives of other creatures teach us about ourselves? In this episode, we speak with Giggs about the astonishing ways in which whales and humans live in each other’s wakes and the enormous power of the world’s largest mammals to expand our own moral capacity.
As Dr. Joseph Drew Lanham writes in his beautiful and deeply moving memoir, The Home Place: Memoirs of a Colored Man’s Love Affair with Nature, from his earliest days growing up in the piedmont forests and fields of Edgefield, South Carolina, he dreamed of flight. This fascination with the aerial journeys of the blue jays that stole his grandmother’s pecans and the crows that invaded his father’s cornfield sparked Dr. Lanham’s lifelong dedication to studying birds and to exploring what it means to be a “rare bird” himself: a Black man in a field that is overwhelmingly white and an ecologist finding freedom through wildness on land where his ancestors were enslaved. In addition to advancing scientific understanding of wild animals, Dr. Lanham has written extensively about the deep and often overlooked connections between how we treat nature and how we treat our fellow humans. In this episode, we speak with Dr. Lanham about how bird lives and Black lives intertwine in the story of the Carolina Parakeet, the language-defying joy of watching swallow-tailed kites, and why Emily Dickinson was right in declaring that “hope is the thing with feathers.”