Overheard at National Geographic

Less than 4,000 tigers live in the wild, but experts say there may be more than 10,000 captive in the U.S., where ownership of big cats is largely unregulated. Overheard’s Peter Gwin talks with National Geographic Channel's Mariana van Zeller about her investigation into tiger trafficking and how wildlife tourism encourages a cycle of breeding and mistreatment. For more information on this episode...

Spinosaurus has long been a superstar among dinosaur fans, with its massive alligator-like body and a huge “sail” of skin running the length of its spine. Though the fossil was unearthed a century ago, scientists hadn’t been able to say exactly what it looked like because only a few bones had ever been found. But new fossil discoveries by National Geographic explorer Nizar Ibrahim will forever cha...

On the bottom of the world’s oceans lie historic treasures—the lost wrecks of ships that carried enslaved people from Africa to the Americas. Only a handful have been identified so far, but National Geographic explorer and Storytelling Fellow Tara Roberts is documenting the efforts of Black scuba divers and archaeologists to find more, hoping to finally bring their stories to light. For more infor...

How do you measure something that destroys everything it touches? That’s an essential question for tornado researchers. After he narrowly escaped the largest twister on record—a two-and-a-half-mile-wide behemoth with 300-mile-an-hour winds—National Geographic Explorer Anton Seimon found a new, safer way to peer inside them and helped solve a long-standing mystery about how they form. For more info...

Andrea Bruce, a National Geographic photographer, has covered conflict zones around the world for nearly two decades. She shares how the experience of capturing democratic ideals as a war photographer in Egypt, Afghanistan, and Iraq now shapes the way she's chronicling democracy in America in 2020. For more information on this episode, visit nationalgeographic.com/overheard Want more? Explore disp...

Photographer and National Geographic Storytelling Fellow Ruddy Roye grew up in Jamaica, a cradle of reggae and social justice movements. He describes how that background prepared him to cover the historic protests and civil unrest in 2020, what he’s tackling in his new National Geographic project "When Living Is a Protest," and what he tells his sons about growing up in America. For more informati...

Documenting democracy. Untwisting the world’s largest tornado. Searching for wrecks of lost slave ships. Dinosaur hunting in Morocco. Accidentally inventing a new color. 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. Hosted by Peter G...

Photographer Anand Varma details his very first natural history adventures—not in Amazonian rainforests or on Polynesian coral reefs but in suburban Atlanta—and how a childhood fascination with catching frogs and turtles in his backyard led to a career documenting the fantastical worlds of “zombie” parasites, fire ant colonies, vampire bats, hummingbirds, and jellyfish.   Want More? Read about the...

Anastasia Taylor-Lind talks about how she grew up living the life of a modern gypsy, traveling across southern England in the back of a horse-drawn wagon, and how her experiences covering conflicts in Iraq and Ukraine forever changed the way she views storytelling and war photography.   Want More? You can see the photo of the female Peshmerga soldier that launched Anastasia’s career on her website...

Chirp. Whistle. Creak. Beluga whales, the canaries of the sea, have a lot to say. But noise from ships can drown out their calls, putting calves in danger. What happens when humans press pause during the coronavirus pandemic—and finally give ocean life some peace and quiet? For more on this episode, visit nationalgeographic.com/podcasts/overheard. Want more? Ever wonder why ocean animals eat plast...

Humans face an existential problem: feeding billions of people in a warming world. But there’s a ray of hope. And it all starts with microbes.  For more information on this episode, visit nationalgeographic.com/overheard Want more? Microbes are everywhere! Learn about the bacteria living in the depths of the Mariana Trench, in the Pacific Ocean, and what they might tell us about life in outer spac...

A harrowing journey is all in a day's work for a Nat Geo explorer trying to find the world’s southernmost tree. But what happens when a self-proclaimed "normal human being" tags along? For more information on this episode, visit nationalgeographic.com/podcasts/overheard. Want more? Read Craig’s story, and see pictures of the journey and the world’s southernmost tree. A nature reserve in the Cape H...

When a Mongolian paleontologist sees a dinosaur skeleton illegally up for auction in the United States, she goes to great lengths to stop the sale. For more information on this episode, visit nationalgeographic.com/overheard Want more? Read about the latest discoveries in paleontology, such as the T.Rex's survival strategy for when food was scarce. Find out about the entrepreneur from Florida who ...

They're smart, they're sneaky, and they aren't moving out any time soon. Meet your new neighbor, the coyote, and find out why these cunning canids are on the rise in North America-and beyond. For more information on this episode, visit nationalgeographic.com/podcasts/overheard. Want more? Read more of Christine Dell'Amore's reporting about coyotes' remarkable spread. See Chicago through a coyote's...

A mechanical engineer teams up with an unlikely band of students who use middle school math and science to create artificial glaciers that irrigate Ladakh, a region in India hit hard by climate change. For more information on this episode, visit nationalgeographic.com/podcasts/overheard. Want More? Read Arati's story about Sonam Wangchuk and his artificial glaciers in this month's issue of the mag...

Smuggled dinosaur bones. Man-made glaciers. An audacious quest to find the world's southernmost tree. Each week, we'll dive into one of the curiously delightful conversations we've overheard around National Geographic's headquarters. You'll be introduced to the explorers, photographers and scientists at the edges of our big, bizarre, and beautiful world. Hosted by Peter Gwin and Amy Briggs. If you...

Coronaviruses aren't new. For more than 20 years, German virologist Rolf Hilgenfeld has been looking for ways to slow or stop the virus. What does it take to find a treatment for coronaviruses, and what might that mean for the future of COVID-19? For more information on this episode, visit nationalgeographic.com/overheard Want more? Rolf Hilgenfeld is one of the many people who are trying to test...

Right now, one million animal and plant species are threatened with extinction. Conservation scientists are doing whatever they can to save them, or at least of piece of them. For the last 45 years, a team of researchers at the San Diego Zoo has been freezing the cells of endangered animals. With these time capsules of DNA, researchers continue to study endangered animals, and hope to maybe even b...

Social Media is not just for modern folk. In ancient Pompeii, people also shared what they thought, who they met with, what they ate... It's just, they had to use different technology. For more information on this episode, visit nationalgeographic.com/overheard Want more? Pompeii is not just an archaeological site, it's one huge graveyard. But it was very much a living city right up until it was s...

A fireball from outer space crashed into one of Earth's biggest lakes. Scientists didn't know how to find it. So, they called in just the right people for the job -- an actor and a bunch of teenagers. For more information on this episode, visit nationalgeographic.com/podcasts/overheard. Want more? See eyewitness reports and videos from the February 2017 fireball that sparked the Aquarius Project....

The desolate Alaskan tundra - a landscape that has literally been frozen solid for thousands of years - is suddenly caving in on itself. Colonizing beavers are engineering new wetlands that thaw the soil, rapidly releasing greenhouse methane into the atmosphere. Beavers can survive in the arctic because - like people - they change the environment to make homes for themselves, and their carbon foot...

Crawl into the Maya underworld, where science meets spirits, shamans, and snakes. A long-forgotten cave could shed light on one of history's most enduring questions: why did the ancient Maya collapse? For more information on this episode, visit https://www.nationalgeographic.com/podcasts/overheard Want more? See the incense burners, plates and grinding stones found in the Cave of the Jaguar God. L...

What do tigers, sloths, elephants and bears have in common? They're all part of the incredibly lucrative captive wildlife tourism industry. Travelers from around the world clamor for opportunities to pose with these magnificent creatures and get that perfect selfie. This week - we look at the complicated nature of elephant tourism in Thailand. For more information on this episode, visit nationalge...

Half a mile below the surface of the earth, in a cave too hot to explore without an ice-packed suit, NASA scientist and Nat Geo explorer Penny Boston clambers around glassy crystals that are taller than telephone poles and wider than dinner tables. But it's not The Crystal Cave's grandeur she's interested in -- it's what may be hibernating inside the crystals. Astrobiologists like Penny Boston sco...

How did an ancient Roman harbor end up in ruins? Scientists realized the culprit was a long-forgotten natural disaster that left tell-tale geological clues -- and possibly an eyewitness account in an ancient religious text. But solving this mystery led to a bigger question: what if it happens again? For more information on this episode visit nationalgeographic.com/overheard Want more? Learn about...