Overheard At National Geographic

Overheard At National Geographic

Peter Gwin, Amy Briggs
Peter Gwin, Amy Briggs

Come dive into one of the curiously delightful conversations overheard at National Geographic’s headquarters, as we follow explorers, photographers, and scientists to the edges of our big, weird, beautiful world.

Search through this Podcast

Podseeker

Episodes

Playback: This Indigenous Practice Fights Fire with Fire

June 27, 2023
Episode Summary
The episode explores the indigenous practice of cultural burning, which involves lighting low intensity fires to clear brush and undergrowth in forests. This practice had been used for thousands of years by tribes like the Karuk, Yurok, and Hupa in Northern California to manage the land and prevent larger wildfires. However, when European settlers arrived, they suppressed cultural burning due to fear of fire and a lack of understanding of its benefits. This suppression was furthered in the early 20th century after a devastating wildfire killed dozens of firefighters, leading the newly formed U.S. Forest Service to implement a policy of fire suppression. The episode explains how the suppression of cultural burns has led to a dangerous buildup of fuels in Western forests, contributing to larger and more frequent wildfires in recent decades. It shares the perspective of members of tribes like the Karuk who are working to revive cultural burning. They explain how fire is necessary for cultural practices like acorn gathering and basket weaving. The episode also features scientists like Frank Lake who are using research to demonstrate the ecological benefits of cultural burns. It highlights efforts by tribes and organizations to reintroduce cultural burning and train a new generation of indigenous fire practitioners, despite continuing challenges like the need to get government permits. Overall, the episode makes the case that cultural burning is an effective tool for reducing wildfire risks and should be embraced, not suppressed. It argues that indigenous knowledge of fire ecology must be valued if we are to address worsening wildfires in the face of climate change.

A Mexican Wolf Pup’s Journey into the Wild

May 23, 2023
Episode Summary
Title: A Mexican Wolf Pup's Journey into the Wild Summary: The episode explores the story of how the Mexican gray wolf was brought back from the brink of extinction in the American Southwest. It starts by describing the Gila wilderness area in New Mexico, the first official wilderness protected by the U.S. government. This protection was influenced by Aldo Leopold, an early forest ranger who had a change of heart about exterminating wolves after shooting one. Leopold's efforts weren't enough to save the Mexican gray wolf, which was hunted to extinction in the region by the 1960s. In the 1970s, the Endangered Species Act allowed the U.S. Fish and Wildlife Service to start a captive breeding program using just seven surviving Mexican wolves. Roy McBride, a legendary wolf trapper, caught several of the original wolves used to start the breeding program. After two decades of carefully breeding the wolves in captivity, the first litters were reintroduced to the wild in 1998. Several techniques were tried, including fostering pups into wild dens to be raised by wild parents. The episode recounts the elaborate process of "camouflaging" captive-born pups with the scents of wild littermates so they can be adopted by wild mothers. While the reintroduction has had challenges, there are now around 240 Mexican wolves in the wild, bringing the species back from the brink of extinction. The episode suggests Aldo Leopold would be glad to know the wolves are making a comeback.

The Dark Reality Behind India’s Festival Elephants

April 25, 2023
Episode Summary
The Dark Reality Behind India’s Festival Elephants explores the complex relationship between elephants and Indian culture. Asian elephants are revered in Hinduism and used in festivals, but they are also endangered and often mistreated. Filmmaker Sangeeta Iyer explains how elephants are captured from the wild and painfully trained to walk through crowded festivals. They are decorated but also scarred and blinded by hooks and prods. One celebrity elephant, Techukotukavuramachandran, has killed people after losing control yet still performs. Iyer bonded with an elephant named Lakshmi who swayed and bobbed her head from boredom. After Lakshmi took her handler's food, he brutally scarred her face and blinded her eye. Elephants have never been truly domesticated, only tamed, so an element of wildness remains. Jyothi Kaurat's film Elephant Country shows some caretakers treat elephants well but others unintentionally or intentionally hurt them through harsh training. India has banned capturing new elephants since 2003, so the population is declining. Current elephants are overworked as demand rises. Iyer advocates for sanctuary where elephants can roam freely. She commissioned robotic elephants to replace live animals in future ceremonies. Theology does not mandate live elephants. Though Iyer receives threats, she persists in speaking out against elephant exploitation. More humane options like robots can maintain ancient traditions without harming endangered elephants.

The Woman Who Knows What Elephants Are Saying

April 11, 2023
Episode Summary
The Woman Who Knows What Elephants Are Saying Joyce Poole has been studying African elephants in the wild for 50 years. As one of the first researchers observing elephants in their natural habitat, she made many initial discoveries about their behavior and communication. Elephants use low-frequency rumbles to communicate over long distances. They also make trumpeting sounds for aggression, play, and other emotions. By compiling an ethogram, a dictionary of elephant calls and gestures, Poole has been able to decode their language. Poole shares how elephants express a range of emotions. She describes a female elephant's grief over her dead newborn calf, as well as another elephant's seeming gratitude when Poole helped her drink and saved her baby from hyenas. Poole discusses the debate around attributing human emotions to animals, arguing that elephants clearly experience complex feelings like love, joy, and grief. Poole pioneered techniques for observing elephants, including recording their vocalizations and movements with punch card systems. She collected urine samples to prove male elephants experience hormonal cycles called musth. Poole can identify individual elephants by the unique notches in their ears, the size and shape of their tusks, and other physical characteristics. In addition to furthering knowledge about elephants, Poole works to protect them. Due to poaching, the elephant population declined catastrophically in the late 20th century. An international ban on ivory trade was enacted in 1990. However, elephants remain endangered, and conservation requires addressing the persistent demand for ivory. As Poole says, "If we can't make space for elephants, are we gonna think about the frogs and these birds here?" Saving elephants means saving their whole ecosystem.

From the Frontlines to the Shorelines

March 28, 2023
Episode Summary
The podcast episode "From the Frontlines to the Shorelines" features National Geographic photographer David Guttenfelder reflecting on his career covering conflict zones around the world. It begins with Guttenfelder describing his experience kayaking among the Apostle Islands in Lake Superior in 2020. He spent 3 weeks paddling and camping on the islands, braving rough waters and storms. The islands were logged heavily in the past but are now a protected wilderness area. Guttenfelder saw signs of ecological regeneration, like old growth forests reclaiming abandoned logging equipment. He also encountered ancient sea caves, eroded sandstone formations, and Ojibwe campers learning about their ancestral lands. The podcast then goes back to recount Guttenfelder's unlikely career as a conflict photographer. In the 1990s, he left his small newspaper job in Iowa to cover the Rwandan genocide. With no experience, he documented the horrific aftermath and refugee crisis. This set the tone for decades of photographing wars across Africa, then Iraq and Afghanistan. In Iraq, Guttenfelder hired a ragtag group of local photographers who went on to win a Pulitzer Prize. After years chasing news stories worldwide, the pandemic grounded Guttenfelder in 2020. He reflects that this forced time at home led him to confront issues like PTSD from his war coverage. The Apostle Islands kayaking trip became a form of therapy, reconnecting with nature and appreciating the beauty in his own backyard. Guttenfelder says wilderness can have a powerful impact on people who have experienced trauma. The trip reaffirmed his belief that small, local stories are just as important as the major headlines he usually chases.

What Women in China Want

March 7, 2023
Episode Summary
Paragraph 1: Photographer Justin Jin traveled to China in 2022 to work on a story about the country's changing demographics for National Geographic. Due to COVID restrictions, getting into China was extremely difficult and expensive. Once there, Jin had to constantly change plans to avoid lockdowns and quarantines. Paragraph 2: China's population is projected to shrink dramatically in coming decades, declining by over 50% by 2050. After being the world's most populous country for decades, China will soon be surpassed by India. This massive shift is due to the legacy of the one-child policy as well as urbanization and the high cost of raising children. Paragraph 3: To illustrate this abstract trend, Jin photographed telling scenes of modern life in China. His photos show the extremely high cost of childcare, with luxury postnatal centers allowing new moms to return to work quickly. He photographed a family representing three generations affected by the one-child policy, with only one great-grandchild left. Other photos show young couples prioritizing dogs over having children as well as women hiring male escorts, reflecting changing values. Paragraph 4: Facing a declining population, China has now relaxed its one-child policy. However, government propaganda pressuring women to marry and have babies earlier has been ineffective. Many educated, urban women are choosing singlehood and careers over marriage and children. While gender equality improved under Mao, reforms since the 1970s have decreased women's status and opportunities.

What Happens After You Uncover Buried History?

January 24, 2023
Episode Summary
Nikole Hannah-Jones created the groundbreaking 1619 Project for the New York Times Magazine in 2019, which examined how slavery shaped American society. The project exploded into public consciousness and expanded into a book, podcast, and upcoming Hulu docuseries. Hannah-Jones was able to expand on her original essay about democracy and slavery's influence on the American Revolution in the 1619 book. The book has resonated deeply with students, introducing them to previously unknown history and scholars. The 1619 Project was released at a time when many were grappling with questions of race after the Obama and Trump presidencies. It explains connections between slavery's legacy and modern America that were previously obscured. Hannah-Jones hopes the project encourages other media to uncover buried history and tell a broader American story. She wants it to speak to the silences in traditional narratives. The project has kept growing, from the initial magazine issue to the book, podcast, and now docuseries. More people will be exposed to making connections between slavery's legacy and today's society. Hannah-Jones carries her father and uncle's stories with her. They faced stunted ambitions and health struggles as black men in America. She honors them through her work. While she doesn't see herself as a celebrity, Hannah-Jones knows her work carries meaning for the black community. She feels a responsibility not to let people down.

How Sharks Devoured My Career

January 3, 2023
Episode Summary
How Sharks Devoured My Career Gibbs Kaguru was a pre-med student who felt uninspired by his studies. His advisor suggested he join a shark diving tour in South Africa, which changed the course of his life and career. Though initially terrified, Kaguru's first experience diving with great white sharks dispelled his notion of them being bloodthirsty. Seeing their beauty and grace, he was drawn to learn more. Kaguru spent 6 years interning and working for a shark tour company, developing skills needed to be a confident shark scientist. Though offered a chance to return to his medical studies, he couldn't imagine leaving the sharks. He combined his new passion with academic curiosity to learn as much as he could about sharks. Free diving with sharks gave Kaguru an incredible sense of awe and connection. Despite the Jaws effect giving sharks a bad reputation, Kaguru aims to share positive shark stories and change perspectives. He discusses sharks' evolutionary history, resilience, and advanced social behaviors. However, sharks now face threats from human activity like overfishing and pollution. Kaguru's research examines these impacts, like the skin disease emerging in shark populations in the Maldives. He hopes further studies of sharks' genetics and adaptations can inform conservation as well as applications like biomedicine. Kaguru is committed to being a voice for sharks and illuminating the threats they face. Though challenging at times, his shark research has given him a purposeful career and deep appreciation for these ancient ocean animals.

The Nurse Keeping Explorers Alive

December 27, 2022
Episode Summary
Karen Berry is the nurse at National Geographic whose job is to keep explorers safe and healthy while they are on assignments around the world. She tracks dozens of travelers at a time, contacting them to check on their health and prepare for any medical issues they may encounter. This preparation involves anticipating potential risks like disease outbreaks or injuries, and equipping the explorers with medical kits tailored to their destinations. One of her most frequent patients is biologist Brady Barr, known for his show Dangerous Encounters. He has sustained many injuries over the years, including broken bones, snake bites, and a python bite that required emergency care. The story behind the photo of him facing down the python that bit him is legendary at National Geographic. While in a cave filled with snakes in Indonesia, Brady was bitten on the leg by a massive python he was trying to capture. The bite left large, bloody wounds. After subduing the snake, he had to hike out of the cave in his underwear due to his shredded pants. Karen coordinated his care from afar, arranging transport and treatment once he made it out. Preparing explorers for the inherent risks of their work involves thinking through potential medical scenarios, advising them on precautions, and being reachable for emergencies. Karen's experience, care, and preparedness gives explorers like Brady Barr the confidence to take on dangerous encounters around the world.

There’s a Bear in My Backyard

November 29, 2022
Episode Summary
Bears wandering into human habitats are becoming more common, with sightings everywhere from school playgrounds to backyards. Encounters between humans and bears raise concerns about safety for both people and bears. National Geographic Explorer Rae Wynn Grant studies bears and human-bear interactions. She explains that bear populations have rebounded due to conservation efforts, so there are more bears leading to more encounters. Also, human development encroaches on bear habitat. People are also home more often now and observing wildlife in their neighborhoods. A “problem” bear accesses human food sources like garbage or pet food. Calling authorities about a bear sighting can prevent issues by safely removing the bear. But sometimes people report bear sightings as problems when the bear is just passing through. Indigenous peoples have coexisted with bears, seeing them as part of the natural landscape. Grant collars and tracks bears to study their movements and habitat needs to inform conservation. She also checks on mother bears and cubs in their dens to monitor population health. The cub survival rate indicates whether the ecosystem is balanced. Grant didn't grow up outdoorsy but loved nature shows as a kid. In college she learned she could be a scientist studying wildlife. She advises students to follow their passions over just school performance. There are many careers, not just scientists, that contribute to conservation.

The Hole Where King Tut’s Heart Used to Be

October 18, 2022
Episode Summary
Paragraph 1: The episode focuses on King Tutankhamun, the famous Egyptian pharaoh, on the 100th anniversary of the discovery of his tomb. Host Amy Briggs tours the King Tut exhibit at the National Geographic Museum with archaeologist Fred Hebert. The exhibit recreates the tomb with artifacts, photos of its discovery, and recordings of ancient Egyptian spells. Paragraph 2: Briggs interviews Egyptologist Salima Ikram about Tutankhamun's life and legacy. Tutankhamun restored traditional Egyptian religion after his father Akhenaten radically changed it. After Tutankhamun's early death, he was largely forgotten until Howard Carter rediscovered his tomb in 1922. The tomb was remarkably intact, filled with thousands of artifacts. Paragraph 3: Ikram explains the mummification process, designed to preserve the body for resurrection in the afterlife. Tutankhamun's mummy was unusual, covered in a black resin and with his penis erect, possibly representing the god Osiris. His cause of death remains unknown, with theories including illness, accident, murder, or a hippo attack. Tutankhamun brought fame and tourism revenue to Egypt, making him one of the most impactful pharaohs. Paragraph 4: In the exhibit, Hebert shows Briggs highlights like Tutankhamun's burial chamber, golden artifacts, and everyday objects used to equip him for the afterlife. Intriguingly, Tutankhamun's mummy was buried without its heart, essential for judgment in the afterlife. This episode explores Tutankhamun's extraordinary life, death, and rediscovery.

Searching for a Butterfly in a Conflict Zone

September 20, 2022
Episode Summary
Title: Searching for a Butterfly in a Conflict Zone Renna Afendi grew up in Soviet Azerbaijan. Her father was a dissident scientist who studied butterflies. After his death, Renna discovered a rare butterfly had been named after him - Satyrus Afendi. This sparked her interest to find it. The butterfly inhabits a remote mountainous region along the hostile border between Armenia and Azerbaijan. Renna recalls her childhood memories of her father bringing caterpillars home and going on a miserable camping trip to hunt butterflies at age 7. She reflects on his passion for studying butterflies. After his death, 90,000 of his butterfly specimens have deteriorated, leaving only 30,000. Renna became a photographer, often capturing fleeting moments around the world. When she learned about the butterfly named after her father, she felt compelled to find it to honor his legacy. Only a handful of people have sighted it. She meets with her father's old friend and butterfly protege in Armenia to prepare for the search. This gives her a window into her father's world. The political conflict makes it challenging to reach the habitat on both sides of the border. She must take roundabout flights and drives. However, the butterfly helps her connect with people amidst the tensions. Renna reflects on the shared culture between Armenians and Azerbaijanis and the sadness of their entrenched conflict. She remains determined to find the rare butterfly in her father's footsteps, though the outcome is uncertain. It is an emotional search for family history and healing.

Inside the Epic World of Bertie Gregory

September 6, 2022
Episode Summary
The episode provides a behind-the-scenes look at National Geographic's new series Epic Adventures with Bertie Gregory. 29-year-old adventurer and filmmaker Bertie Gregory travels to remote locations around the world to capture rarely seen animal behaviors and highlight conservation efforts. In Zambia, Bertie films crowned eagles hunting bats. He first films the eagles at their nest, then travels to Kasanka National Park where millions of bats migrate each rainy season. Using drones, Bertie is able to film the eagles diving to catch bats mid-flight. He notes the importance of the surrounding forests for the bats and eagles. Bertie then heads to Antarctica in search of fin whales. After braving the dangerous Drake Passage, Bertie finds a massive feeding aggregation of fin whales, the largest ever filmed. Capturing the near-extinct whales is a powerful reminder of successful conservation efforts. Finally, in Zambia's South Luangwa National Park, Bertie documents the strategic hunting dynamics between lions and cape buffalo. After days of tracking, he films an epic standoff between a large pride of lions and a herd of buffalo defending their young. The episode highlights local conservation initiatives aimed at protecting the lion population. Throughout his adventures, Bertie not only captures spectacular wildlife footage but also conveys a message of conservation and humanity's connection to nature. His passion for protecting animals and habitats is the driving force behind these epic adventures.

Harnessing the Power of Yellowstone’s Supervolcano

July 26, 2022
Episode Summary
Title: Harnessing the Power of Yellowstone's Supervolcano Summary: The Yellowstone supervolcano is one of the most powerful volcanoes on Earth, having had three massive eruptions in the past. An eruption today could have devastating global impacts, causing volcanic winter. However, the NASA report suggesting ways to tap into the volcano's geothermal energy to prevent an eruption was misconstrued. Despite myths, the volcano is not overdue to erupt soon. There are small amounts of molten magma deep below Yellowstone today. Scientists use seismic imaging to study the mostly solid but still hot magma chamber. An eruption requires sufficient molten magma and pressure buildup, which does not currently exist at Yellowstone. Geothermal energy from hot underground rock can be harnessed in many places, not just at Yellowstone. This heat can be used to generate electricity at geothermal power plants or provide heating for homes and buildings. Iceland gets nearly all its energy from renewables, including geothermal. Wider implementation of geothermal systems could reduce reliance on fossil fuels and mitigate climate change. While Yellowstone's heat could theoretically be tapped, disturbing the park could have unintended consequences. However, volcanoes also provide many benefits to society, including fertile soil, useful rocks and minerals, and microbe enzymes. Overall, Yellowstone does not pose an imminent threat, and volcanoes remain vital to life on Earth.

Stonehenge Has a Traffic Problem

July 19, 2022
Episode Summary
In June 2021, National Geographic photographer Alice Zhu visited Stonehenge in England to photograph modern day Druids honoring the summer solstice. She captured them silently gathering in the early morning darkness, dressed in long white robes and holding a ceremony amongst the stones as the sun rose. This is just one example of how the ancient monument is still used for spiritual practices today. Stonehenge is a prehistoric site in Wiltshire, England consisting of a ring of standing stones surrounded by circular earthworks. It was constructed in several phases between 3000 BC and 1600 BC and aligned with the movements of the sun. The monument has captured people's imaginations for millennia and now attracts around one million visitors per year. Some come just to see the impressive ruins while others, like Druids, come to worship at the site. However, Stonehenge's popularity has led to some modern problems. Part of the issue is its proximity to the busy A303 highway. The road passes within a few hundred yards of the stones, and tourists often slow down to gawk, creating traffic jams. The road is also a major trucking route, leading to congestion and a high accident rate. To alleviate this, the UK government proposed digging a tunnel under the monument so the road could be widened out of sight underground. But this plan is controversial. Some support it as the best solution, while others argue it could destroy buried artifacts or compromise the integrity of the World Heritage Site. Activists have camped out to protest the tunnel and the issue has gone to court. The clash between preserving an ancient sacred place and addressing modern transportation needs has made Stonehenge a complex dilemma. The monument has seen upheaval before, having been used as a military training ground in both World Wars. But with no perfect solution in sight, the future of Stonehenge remains unsettled.

Do Shark Stories Help Sharks?

July 12, 2022
Episode Summary
Before 1916, sharks were seen as harmless creatures that posed little threat to humans. But that summer, a series of shark attacks along the New Jersey shore changed perceptions dramatically. In July 1916, a shark killed a swimmer named Charles Van Zandt in Beach Haven. Five days later, another swimmer named Charles Bruder was killed by a shark in Spring Lake. Then in early July, three more attacks occurred farther north in Matawan Creek, resulting in two more deaths. These attacks caused a shark frenzy, with the animals portrayed as ruthless killers in media reports. In response, there was a massive hunt to eradicate sharks along the Jersey shore. This marked a major shift in how sharks were perceived by the general public. Where they were once seen as harmless, they were now viewed as vicious man-eaters. The new shark folklore born from the 1916 attacks would be amplified decades later by books like Jaws and films like the 1975 blockbuster of the same name. This further cemented sharks' reputation as mindless killing machines in the public imagination. However, this perception is at odds with reality. Sharks play an important ecological role as ocean predators, and most species pose little threat to humans. The sensationalized shark stories have fueled public indifference and allowed the overfishing that now threatens many shark species. Conservationists say shark narratives need to move beyond simplistic "killer" stereotypes. A more nuanced understanding of shark behavior and ecology is needed to ensure their survival. More scientific knowledge about sharks could help change attitudes and lead to better protections.

Restoring a Lost Sense of Touch

May 31, 2022
Episode Summary
The podcast episode discusses efforts to restore the sense of touch for amputees using experimental prosthetics. Brandon Prestwood lost his hand in an industrial accident. After trying unsuccessfully to save the hand, he decided to amputate. This led to depression and trauma over losing part of his body. His family was very supportive during his recovery. Several years later, Brandon's doctor told him about an experimental prosthetic arm being developed at Case Western Reserve University. The arm connects to nerves in the residual limb, allowing sensations to be felt in the missing hand. Brandon decided to participate in the research despite the risks. The prosthetic arm was developed by biomedical engineer Dustin Tyler. It has sensors that interface with nerves that previously controlled the missing hand. Mild electrical pulses are sent to the nerves to simulate touch and pressure sensations. Patients describe the feeling as a tingling sensation. Having a sense of touch allows amputees to have more control and perform delicate tasks. Pain sensations have not yet been tested, but could help avoid damage and make the prosthetic feel more natural. When Brandon first used the arm, it was emotional and he felt whole again. He was able to hold his wife's hand for the first time in years. The project has given Brandon a renewed sense of purpose. He hopes the research may someday help his son if he ever suffers an amputation.

The Greening of Pittsburgh

May 10, 2022
Episode Summary
Paragraph 1: Pittsburgh is working to transition from its industrial past to become a greener, more sustainable city. The city is already experiencing climate change effects like harsher winters and hotter summers. Organizations like Tree Pittsburgh are focused on climate solutions like planting trees, which restore soil, sequester carbon, and purify air. The city aims to increase tree coverage from 40% to 60% by 2030. Paragraph 2: Activists like Clara Katongo are connecting climate solutions to social justice issues. As a performing artist and program manager at Tree Pittsburgh, Clara stresses the importance of climate action for future generations. She also highlights the need for representation of marginalized groups in sustainability fields. Paragraph 3: Architects like Erika Cochran-Hamin are making Pittsburgh's buildings more sustainable through retrofits. This improves energy efficiency, comfort, and indoor air quality. Erika puts equity first in her work, researching how built environments affect factors like health and academic performance. She aims to end energy poverty and ensure quality housing and education. Paragraph 4: Though Pittsburgh has an industrial legacy tied to emissions-intensive steel and coal, the city now leads in climate solutions. Lifelong Pittsburgh residents like Sarah Lexack are catalyzing this shift. Sarah helps electrify transportation at Duquesne Light Company, reducing the largest source of US emissions. She's driven by a moral obligation to protect the environment.

Solving the Mystery of the Boiling River

April 12, 2022
Episode Summary
Title: Solving the Mystery of the Boiling River Paragraph 1: Andres Russo's grandfather told him the legend of Paititi, a lost Incan city of gold hidden in the Amazon. The legend included mentions of a mysterious boiling river, which many explorers claimed to see but no one could prove existed. Andres became obsessed with finding this boiling river after his aunt claimed she had visited it. Paragraph 2: Andres searched for years for evidence of the boiling river in scientific literature but found nothing. He finally decided to venture into the Peruvian Amazon with his aunt to locate the river. After a long trek, they arrived at a valley with a large steaming river too hot to touch. Andres took temperature measurements showing the water was 187 degrees Fahrenheit - hot enough to boil. Paragraph 3: Andres worked to convince the local shaman, Maestro Juan Flores, to allow him to study the river scientifically. The shaman initially distrusted Andres but eventually sensed his good intentions and gave permission. Andres returned many times to research the dangerous boiling river, nearly losing team members to the scalding waters. He solved the mystery that oil companies had covered up the river's existence in the 1920s. The river was naturally heated by geothermal energy from cracks in the earth's crust. Paragraph 4: Over more than a decade, Andres developed a spiritual appreciation for the boiling river as a sacred place connecting heaven and earth. He believes science should be more accessible, personal and open to other ways of thinking. His experiences show that legends can reveal truths and scientists have much to learn by listening to indigenous peoples.

Queens of the High Seas

March 29, 2022
Episode Summary
Paragraph 1: The podcast begins by discussing how the video game Sid Meier's Pirates transported the host to the Caribbean during the 1500s-1600s to live the life of a pirate. This leads into a discussion of female pirates, like Ching Shih, who led one of the most successful pirate fleets in history with around 70,000 pirates. Paragraph 2: The episode provides background on Ching Shih, who was born in southern China in the late 1700s and worked in a floating brothel before marrying the leader of the pirate confederation, Zhang Yi. After Zhang Yi's death, Ching Shih took over leadership of the massive pirate fleet through strategic marriages and alliances. Paragraph 3: Ching Shih implemented organization and discipline to maintain control of the unruly pirates. She established strict rules and codes of conduct, like beheading for disobedience, but also incentives like a fair system for dividing plunder. Her fleet grew as fishermen joined. The pirates used ruthless tactics, like torturing and killing Chinese Navy sailors. Paragraph 4: The Chinese government tried to shut down the pirates by offering retirement deals. Ching Shih and her husband eventually surrendered, but negotiated to keep their ships and money. Ching Shih died at age 69 after living as a businesswoman. Though not as famous in the West as male pirates, in Southern China legends of her pirate fleet live on. The episode concludes that telling stories of female pirates like Ching Shih helps fill gaps in what history has taught about piracy being a male domain.

The Price of Adventure

February 1, 2022
Episode Summary
The podcast episode "The Price of Adventure" tells the story of Max Lowe, the son of famous mountaineer Alex Lowe. When Max was young, he went on an expedition to climb Denali with his father's climbing partners John Krakauer, Jeremy Jones, and Conrad Anker. During the climb, they got caught in a dangerous thunderstorm that put their lives at risk. This experience made Max realize the dangers of mountaineering and turned him off from pursuing it as a career like his father. Alex Lowe was considered one of the greatest mountaineers of his generation. He made first ascents all over the world and pushed the sport to new extremes. His close friend and climbing partner was Conrad Anker. In the 1990s, Alex and Conrad were at the top of the sport and making a living as professional climbers through sponsorships and film deals. This allowed Alex to focus on climbing full-time and attempt increasingly audacious climbs. In October 1999, Alex, Conrad, and cameraman David Bridges were in Tibet to climb Shishapangma and ski down it, which had never been done before. After setting up a base camp, the three decided to take a short hike to scout the route. Tragically, they were caught in an avalanche which killed Alex and David. The loss was devastating to Alex's family, especially his wife Jennifer and their three young sons. Conrad was wracked with guilt for surviving the avalanche that killed his partners. He grew close to Alex's family, eventually marrying his widow Jennifer. In 2016, Alex and David's bodies emerged from the Shishapangma snow after being lost for 16 years. The family traveled to Tibet to finally put Alex to rest and gain closure. Despite the inherent dangers, Conrad continues to climb, feeling it is his purpose in life. Alex's oldest son Max went on to become a filmmaker. His documentary "Torn" tells his family's story and examines the passions that drive people to take risks climbing mountains. Max explores the exhilaration but also costs of pursuing adventure. The film provides a balanced perspective on the sport his father devoted his life to.

Capturing the Year in an Instant

December 14, 2021
Episode Summary
National Geographic photographer Lindsay Adario was on assignment in Northern California in August 2021, documenting the devastating Caldor wildfires near Lake Tahoe. As the fires raged, she recorded audio of the intense flames approaching and the tense atmosphere as people realized they couldn't control the blaze. Adario and others had to evacuate a ski lodge before it was engulfed, and she lamented missing the opportunity to photograph the lodge burning down. Adario's photos were part of National Geographic's special "Year in Pictures" issue, which collected images from their photographers around the world over the past year. Editors Whitney Johnson and Sadie Corrier sifted through nearly 2 million photos to select the most powerful and poignant ones for the issue. The images covered major 2021 news events like COVID-19, climate disasters, and political conflicts. One standout photo showed a tiny firefighter amid raging flames, conveying the futility of battling the out-of-control wildfires. New photographer Mohammed Fadli contributed moving photos from Indonesia showing the scale of COVID's impact, from mass burials to crowded vaccine centers. Still photos can capture defining moments and sear them into memory in a way other media can't. While augmented reality and audio recordings complement still images, photos will endure as milestones marking events in time. The "Year in Pictures" issue encapsulates 2021 through stirring photos and the stories behind them.

A Skeptic's Guide to Loving Bats

October 26, 2021
Episode Summary
The podcast episode follows Rodrigo Medellin, a bat researcher known as the Batman of Mexico. Medellin became fascinated with mammals and wildlife as a young child. His appearance on a TV game show as an 11-year-old mammal expert led to an invitation from Mexico's top mammal researcher to see real mammals in the field. Medellin soon became enamored with bats and made it his life's work to change public perception about them. For hundreds of years, bats have been seen negatively as blood-sucking villains, partly due to myths linking them to vampires. But bats play vital ecological roles, like eating insects that threaten crops and pollinating plants. Medellin aims to highlight bats' importance and reverse the damage done by myths. One way Medellin improved bats' image was by partnering with Mexico's tequila industry. He convinced producers to let more agave plants flower naturally, which provides food for endangered lesser long-nosed bats. This pollination also increases agave genetic diversity, protecting tequila from crop blights. A mutually beneficial bat-friendly tequila certification program was created. However, the COVID-19 pandemic renewed unfounded accusations against bats as a possible source. This misinformation has led to bats being killed worldwide. Medellin has worked tirelessly to spread facts, clarify that bats don't directly transmit COVID-19, and stop the violence against them. Medellin finds renewal in the tranquility of bat caves and wants to bring people into the world of bats. We can help bats by learning about them, putting up bat houses, and sharing facts to become bat defenders. Medellin aims to transform bats' image from villains into heroes we need.

Playback: The Frozen Zoo

September 28, 2021
Episode Summary
Paragraph 1: The Frozen Zoo at the San Diego Zoo contains frozen cell samples from over 10,000 animals, including many endangered species. It was started in the 1970s by Dr. Kurt Benirschke, who wanted to see if assisted reproduction technologies being developed for humans could help save endangered animals. The cells are preserved at -196°C in liquid nitrogen tanks, stopping all life processes until the vials are thawed. Paragraph 2: The frozen samples contain valuable DNA that could help rescue species from extinction. Techniques like cloning and stem cells may allow scientists to use the DNA to produce embryos or gametes and create offspring. This has already been done with mice. For northern white rhinos, only cells remain after the death of the last male, Sudan, in 2018. Researchers hope to use frozen cell samples to prevent the species' extinction. Paragraph 3: While new technologies create possibilities, experts urge caution about technological optimism. The environments that led to extinction still need to be addressed. Returning captive-bred animals to the wild can be very difficult. And extinct species may lack the behaviors and gut bacteria needed to survive. The Frozen Zoo provides hope but cannot replace habitat conservation efforts. Paragraph 4: The Frozen Zoo also helps living endangered species by providing an infusion of genetic diversity, similar to how Texas panthers were used to rescue the Florida population. So it serves as an insurance policy and additional tool for traditional conservation approaches. Though unproven, it expands our options at a critical time when so many species face extinction.

The Guerrilla Cyclists of Mexico City

September 21, 2021
Episode Summary
The Guerrilla Cyclists of Mexico City Jorge Cáñez is a cycling activist in Mexico City who patrols the streets in a costume to help pedestrians and promote cycling. He goes by the name "Pertonito" (Little Pedestrian) and wears a mask and cape to take a stand against dangerous driving and lack of pedestrian infrastructure. He helps people cross streets, paints bike lanes, and marks potholes to make the streets safer. Though his mother worries, Cáñez feels empowered with a secret identity to fight for pedestrian rights. Mexico City has few bike lanes and dangerous, congested streets. Activist Arely Carrillo became an advocate for cycling after seeing her sister suffer asthma attacks from pollution. She has tried various tactics over 20 years to promote biking, including a nude bike ride painted as a famous statue. Carrillo eventually married a man she met on a bike forum. The couple worked to pressure politicians for more bike infrastructure. In 2011, they took matters into their own hands and painted a bike lane outside government offices. The Netherlands and other countries have undergone cycling transformations. As auto fatalities spiked in the 1970s, activists demanded safer streets. Tom Grode Freuij and others painted bike lanes themselves overnight. Though briefly arrested, they drew attention and the city installed the lanes. Thanks to continued activism, Dutch cities now have extensive bike infrastructure and far fewer traffic deaths. Experts believe similar bike revolutions can happen anywhere. US cities are expanding networks of bike lanes, greenways and public transit. While progress takes time, cities like Seville, Spain quickly installed many miles of bike lanes. With vision and public pressure, experts believe North America too can transform into bike-friendly cities.

Playback: The Glass Stratosphere

July 20, 2021
Episode Summary
In the early 1960s, NASA was focused on sending the first man into space as part of the space race with the Soviet Union. They decided astronauts needed to be military test pilots, which automatically excluded women from the astronaut program. Dr. William Lovelace decided to privately test female pilots to show they were just as capable as men for space travel. He put 19 women through extensive medical and psychological exams. Thirteen passed, showing results equal or better than the men. Lovelace then planned to have the women train on fighter jets in Pensacola to further prove their abilities. However, NASA found out about the testing and shut down the program, refusing to support it. A couple of the women lobbied politicians in Washington D.C. to try to get NASA to change its mind, including meeting with Vice President Johnson, but they were unsuccessful. During Congressional hearings on the issue, astronaut John Glenn testified that women did not belong in space. More damaging was Jackie Cochran, a famous aviator who funded the testing, arguing against the program and the women pilots. As a result, Congress sided with NASA and the program ended. Shortly after, the Soviets sent the first woman, Valentina Tereshkova, into space in 1963. It took until 1983 before an American woman, Sally Ride, went to space as a mission specialist. A decade later, Eileen Collins became the first female pilot and commander of a space shuttle. Though slow, progress was made thanks to the persistence and testing of the Mercury 13 women pilots in the early 1960s who tried to break NASA's glass ceiling.