The Cage

17 Jun 2025 · 18 min

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Radiolab Podcast Episode Notes: The Cage

Episode Overview

  • Title: The Cage
  • Series: Swimming with Shadows: A Radiolab Week of Sharks
  • Hosts: Lulu Miller and Latif Nasser
  • Reported by: Rachael Cusick
  • Produced by: Rachael Cusick, Simon Adler, with contributions from Pat Walters
  • Sound Design: Jeremy Bloom

Episode Description In this episode, the hosts explore the cultural impact of sharks in cinema, particularly focusing on how Hollywood has transformed sharks into monstrous creatures, all while seeking to understand the real-life counterparts of these mythical beasts. The narrative shifts from the sensationalized portrayal of sharks to the reality of one particular species that has survived for millions of years.

Key Themes and Discussions

  1. Hollywood's Shark Phenomenon
  2. Jaws: Launched the trend of monster shark films.
  3. Shark Movies: Over 180 shark-themed films, including titles like:
  4. Sharknado (and its sequels)
  5. Deep Blue Sea
  6. The Meg
  7. Ghost Shark
  8. Multi-headed sharks: Two-headed, Three-headed, up to Six-headed sharks
  9. Concept of Freedom: The genre allows sharks to exist in fantastical scenarios, from flying to swimming through snow.
  1. The Real Shark Encounter
  2. Location: Port Lincoln, South Australia, known for shark cage diving.
  3. Preparation: Participants sign waivers and set sail to Neptune Islands.
  4. Anticipation: A diverse group of people come together, united by their desire to encounter great white sharks.
  1. The Waiting Game
  2. Baiting the Sharks: Crew uses "chump" (fish parts) to attract sharks, resulting in a multi-day wait without sightings.
  3. Emotional Build-up: As days pass without seeing any sharks, tension and disappointment grow among the crew and participants.
  1. The First Shark Sighting
  2. Cage Dive Experience:
  3. Descriptions of descending into the ocean, the fear, and anticipation of a shark encounter.
  4. The first sighting of a young great white shark, which moves gracefully rather than chaotically, challenging the terrifying images propagated by films.
  1. Shark Longevity and Diversity
  2. Historical Context: Sharks are over 465 million years old, predating trees, dinosaurs, and even the rings of Saturn.
  3. Adaptations and Varieties:
  4. Sharks inhabit diverse environments, from tropical waters to Arctic regions.
  5. Unique species include:
  6. Greenland shark (lives for hundreds of years).
  7. Lantern sharks (bioluminescent).
  8. Swell sharks (can inflate to evade predators).

Key Takeaways

  • Cultural Impact: The shark mythos in Hollywood often overshadows the true nature and ecological significance of sharks.
  • Reality vs. Fiction: The episode seeks to bridge the gap between sensationalized fear and the awe-inspiring realities of shark behavior and biology.
  • Conservation Note: Understanding sharks and their historical importance can foster a greater appreciation and push for conservation efforts amidst ongoing threats to shark populations.

Conclusion The episode blends investigative journalism with personal storytelling and scientific insights, leading listeners through an emotional journey from fear to fascination with sharks. The narrative ends on a hopeful note for future episodes, hinting at more discoveries in the realm of shark science and conservation.

Episode Citations

  • Books:
  • *The Secret History of Sharks* by John Long
  • *Chasing Shadows: My Life Tracking the Great White Shark* by Greg Skomal
  • Videos: Jaida Elcock’s videos on sharks on Instagram.

Support and Community Engagement

  • Listeners are encouraged to support Radiolab through membership, which also includes access to exclusive content and gifts. Engagement via social media and email is promoted for community interaction.

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This structure encapsulates the essence of the Radiolab episode, detailing its content, themes, discussions, and community engagement while providing an organized and accessible format for readers seeking to understand the podcast's insights into sharks and their cultural representations.

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Transcript

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0:28Wait, you're listening. we're going to jump in the water with them. Well, I am. You two get to just sit in your cozy little offices and hear about it. Fair point. Fair point. But before we get into the water, I think we should actually start with the onslaught of shark movies that were inspired by Jaws. All right. So there are 180 or so monster shark films. Wait, 180? With our monster scholar from episode one. At least 180 are listed on the internet movie database. Jeffrey Cohen. I definitely know Sharknado. What else is there? You know Sharknado, but do you know Sharknado 2, 3, 4, 5, and 6? Oh, my God.

1:09Where in part 6, they return back in time to Sharknado 1. Well, of course. So, I mean, that deep blue sea. Because we are stuck in the middle of the ocean. Open water. How big is that thing? The Meg, followed by a cheap remake called Jurassic Shark, which is not nearly as good. The Reef, Ghost Shark. In that one, even if you kill the shark, you're not done because its ghost will come back and get you. They've tasted human flesh! Two-headed shark is exactly what's advertised. No! Double the trouble. Followed, of course, by three-headed shark in 2015, five-headed shark in 2017, and then six-headed shark in 2018.

1:51At which point it looked like a starfish with all kinds of shark heads on it. Oh my God. There's almost every kind of shark movie. And what I love about the whole shark genre is that it looks to free the shark from the constraints of being underwater so that sharks can be everywhere. There's sky sharks. Sharks? But they can fly? Avalanche sharks. They swim through the snow like other sharks move through water. Beat? I can make it! I can make it! It's about sharks in a supermarket. Where are they in a supermarket? Well, the supermarket does flood. Ah. But it's just movie after movie like this.

2:33So Jaws like kicked off this world, like this universe of shark monsters, taken them out of their world and like dragged them into ours. And I kind of just wanted to go do what Rodney told us to do yesterday, like go and see it for myself. I mean, I know this works for your guy that seeing it made him less afraid. But like, I mean, I think you're going to go down there and see like, oh, this thing is bigger than me. It is capable of completely tearing me to shreds. Like there is a possibility that you're going to get down there and just be more afraid of it. Yeah. But I think I actually want to know.

3:17So. All right. I hopped on a plane to this town in South Australia called Port Lincoln, informally known as Tuna Town. It's this little fishing town, and that's where Rodney's cage diving boat leaves from. Okay. You got the shark on the side and everything. Got to the dock. We drop our bags. We do some paperwork. Basically, like, sign away our lives. And then we set sail. Hold on. where we will spend the next four days looking for great white sharks. Is there a lesser white shark? Well, so this is a good question. No, there's not. It used to be like the white shark all along. And then once they started becoming scarier and scarier around the era of Jaws, we started calling them great whites to add fear to them.

4:06What? They just added, it's not like actually the scientific name. Yeah, no. So all the scientists now, you'll hear them just say white shark because it's like rebranding the shark. Huh. Okay, so you're on the boat. Yep. And how many people are there? I think it's like 15 passengers plus the crew. Okay. I come from France, Paris. These people are from all over the world. New Zealand, Lausanne. New York City, best place on Earth. I'm from Japan. And they're all so excited to see a white shark. I want to see the great white shark. Which was just like a fascinating little world for me to drop into.

4:39I'm passionate with sharks. Because, you know, like most people hope they never see one. I want to meet the apex predators in their natural state. There were these two brothers. Sergio, who loves sharks more, you or me? Who were so into sharks. I think I do, yeah. They were competitive about it. I love them, but he adores them. The older one said that when he was in kindergarten, he did a presentation about sharks. And I even wrote it wrong on the board with a CH, so that's sharks. Because I didn't know English, but I knew a lot about sharks. And he ended up getting in trouble because he had taken these books out of the local library.

5:14And I was so amazed by the shark pictures in the book, so I cut out the pictures with the scissors. And I was, like, looking at the pictures in my room and being so obsessed with them. That's amazing. You just picture, like, the exact silhouette. Yeah, exactly. So from Port Lincoln, we sailed for hours, like four, five, six hours, to this remote group of islands called the Neptune Islands. There's a wild, rough sea bumping against the rocks. I will describe it as rough. Yeah, very rugged, like dark blue water, dark gray rocks. It seems sort of barren, but... You feel that there's something around here.

5:56It's a feeling, you know? As soon as we anchored there, we noticed this intense smell, which is actually coming from us. I think that's called chump. It's like minced up bits of fish guts and skin and heads and stuff. The crew is throwing, like, buckets of fish parts off the back of the boat. I have a hat with a ribbon on it that says Master Baiter. And I just heard that white thing. What was that? All of a sudden, these colors start flashing across the water. What? White and gray and silver. And they look like little sharks if you don't see their mouths. No sharks. They're not sharks. No shark, we're sharkless.

6:37Which is kind of the point. The bait is supposed to attract the smaller fish, which attract the sharks. But a day went by. Have we seen anything? No, not yet. Not yet. And then another day. She literally nothing. I see nothing. Nope. I see water. And there was just nothing. It's wild to me. You're pouring, like, blood, meat, flesh, fish, corpses, all this stuff in, and it's, like, days? Days. I would be like, oh, they'd be there, and they'd go... Exactly. you know, and they'd be there within 34 seconds. I know, I know. But that's not what happened. So two days have passed out of four and we haven't seen a single shark.

7:17Wow. And so there's just this cloud like looming over the boat. And so we go to bed that night and we're like, we really hope that tomorrow, like we'll see one. No, I'm sorry though. I'm sorry. I need for the rest of us who aren't in this deranged epicenter of the world where you want to see sharks. I love knowing that you poured gallons of blood into the water and didn't see the sharks. Yeah. This is the best story ever. It's great news for you. Yeah. It's really, it kind of, you're in the sharkiest waters of all waters and they're not coming. And so like the next day, bright and early, the first cage goes down because they send the cages down even if they don't see a shark on the top just in case there's something down there.

7:56Yeah. So I'm up on the top of the boat next to the skipper because he's the one that controls the crane. And then suddenly he pauses. I don't know if she just said five pulls there. He feels five pulls on this string. I thought it was five. The string that runs down to a cage they've lowered 60 feet to the bottom. And the people down there, they'll pull on the string to communicate with the surface. Five pulls for a shark, so hopefully it is one down there. And eventually, the skipper winches the cage up. Okay, guys, can you report back? We did. We saw a white shark. And they had actually seen the shark.

8:43They were so excited.

8:48And then all of a sudden it was my turn. Like the crew was like, get your stuff on. It's go time. Okay, and how does that feel? I'm a little bit confused. I'm a little bit like I'm so happy that we finally have a shark around like it had been so long. But then I'm also kind of nervous when the reality of it set in like, oh, it's actually down there. It kind of feels like what you're in a lion to just go on like a terrifying roller coaster. And you've just seen all of these people with like shocked smiley faces like tumbling off. And then you get buckled in and there's like no turning back. Like it feels both exciting and terrifying.

9:26going. Is anyone in the cage with you? Four people fit. One of them is a dive master. So you're with someone at all times.

9:40And once the four of us settle into the corners of the cage, our dive master signals to the skipper.

9:48We're ready to go down.

9:52so we get dropped down like we're taking an elevator deep into the ocean and as we go it gets darker and darker and darker and you can see less and less because you're getting further away from the the sun and eventually we get down to around 60 feet and the cage stops moving and all i can see is this barren sand of the ocean floor and above it is just this abyss of blue. I was bracing. It was just like so much fear building of what's going to come out of that blue and like when is it going to come out and which direction is it going to come from. All I can hear is the sound of my breath which was very heavy.

10:47and then I hear this scraping sound and it's the dive master scraping this little metal knife against the side of the cage and the sound is supposed to get the sharks interested to come closer but it kind of feels like a dinner bell and then I feel a tap on my shoulder and I like look over to the left like behind my shoulder and it's the dive instructor and she just puts her hand in the shape of a fin on top of her head, kind of like to signal shark, and then points into the corner. And as I turned, I remembered this thing Rodney had told me. Don't just look at their heads, at their teeth, because everybody's frightened of their teeth.

11:30Look at the rest of the body. And then out of the darkness, it comes truly out of the darkness, swims this white shark.

11:44It was a young one, so it was smaller. Six and a half feet, gray top with this scraggly white line and belly halfway through it. Little black tips on the front fin. But the thing that's most striking about it is the way it moved. No thrashing or darting like in the movies. Just sort of floating. You know, they fly like airplanes or airplanes fly like great white sharks. They have to dip a wing to turn. And their moves seem to be incredibly deliberate and relaxed. White shark researcher Greg Skomal. They don't do anything that's going to waste their time. The shark, it kind of felt like it was orbiting us.

12:38like kind of fades in and out of your view and comes and goes in and comes out and goes beneath you and then it kind of comes towards you. It's just like, wow. It's beautiful. You're looking at a prehistoric beast, millions of years old. Like it was carved by time to be exactly where it is.

13:05Sharks are 465 million years old, you know, they've been on Earth for such a long time. This is John Long. Strategic professor in paleontology at Flinders University in South Australia. Now, that amount of time is hard to wrap your head around, but John helped me. They're more than twice as old as dinosaurs. They're way older than trees. Flowering plants. They were around before Everest was even a mountain. All of the continents that we live on today, they looked nothing like they do. They're even older than the rings of Saturn. And I mean, over these eons, sharks had to survive all five of Earth's major mass extinctions.

13:43Volcanic eruptions, a massive asteroid, ice ages. Outcompete other major predators. Gigantic pliosaurs with banana-sized teeth and walking whales. And along the way, they just absolutely exploded in diversity. so that today sharks fill so many different niches. According to Jada Elcock, a shark researcher at the Woods Hole Oceanographic Institute, they are all over the place. There's sharks in the tropics. There's sharks in the Arctic. I mean, a bull shark was found so far up the Mississippi River. It was in Illinois. There's all these different versions of sharks carved in their own bizarre ways.

14:23It almost makes the white shark seem boring. If you love the white shark, no hate to you. I also love the great white shark, but sharks are incredible. They are diverse. I'll just go through a bunch of them. Take it from the dark. I mean, some sharks only get to be about eight inches long, while the largest whale shark was almost 62 feet long. So just the sheer difference in the size range. We have glow-in-the-dark sharks, like lantern sharks, that glow on their bellies. There's a shark species that spews bioluminescent goo from pockets near its fins, likely for avoiding and confusing predators.

14:58No way! The rigged shark can snap its teeth together to make kind of a clicking sound while the swell shark will swallow a bunch of seawater, blow up like a big sharky water balloon, and that makes it more difficult for predators to eat it. Wow. And, of course, the Greenland shark can live literally hundreds of years. I'm sure there are Greenland sharks in the ocean right now that were alive during the time of Alexander Hamilton and the time that the musical about his life was written. Isn't that wild to think about? Yeah. Hundreds of years. And there's even a shark that might help us survive one of our greatest threats.

15:41That's tomorrow.

15:46Okay, we just got back and we saw our first sharks. Yeah, we tried to kiss it, but it was too far away, actually. Yeah, yeah. But like, keep an eye out because... This episode was reported by Rachel Cusick and produced by Rachel and Simon Adler. It was edited by Pat Walters and fact-checked by Natalie Middleton, with mixing help and sound design by Jeremy Bloom. And one more thing. We want to give a huge thanks to everyone who supports Radiolab, especially right now. Everyone who's a part of the lab, our membership program. Your support makes big projects like this possible, and we are so grateful.

16:20And if you aren't a member yet or are thinking about giving more, this is the perfect time to take the plunge. Because if you join or re-up now, you will receive a really cool gift. A limited edition Week of Sharks hat designed by the awesome Maine-based artist and surfer, Ty Williams. It's so beautiful and fun and it gives you a chance to show the world you support public radio in the form of Radiolab. And support sharks. It's available to everyone who joins the lab this month, even for as little as seven bucks a month. You can join at radiolab.org slash join. Existing members, check your email for details.

16:59And thank you so much. Day three of the week of sharks coming up tomorrow. See you there.

17:16Hi, I'm Jamie, and I'm from Minneapolis. Here are the staff credits. Radio Lab was created by Jad Abumrad and is edited by Soren Wheeler. Lulu Miller and Latif Nasser are our co-hosts. Dylan Keith is our director of sound design. Our staff includes Simon Adler, Jeremy Bloom, Becca Brassler, W. Harry Fortuna. David Gable, Rebecca Lacks, Maria Paz Gutierrez, Sindhu Nyanasambanda, Matt Kielty, Annie McEwan, Alex Niesen, Sara Kari, Sarah Sandback, Anissa Vitsa, Arianne Wack, Pat Walters, Molly Webster, and Jessica Young, with help from Rebecca Rand. Our fact checkers are Diane Kelly, Emily Krieger, Anna Pujols-Manzani, and Natalie Middleton.

18:01Hi, I'm Daniel from Madrid. Leadership support from Radiolab Science Programming is provided by the Simons Foundation and the John Templeton Foundation. Fundational support from Radiolab was provided by the Alfred P. Sloan Foundation.

From the publisher

This is episode two of Swimming with Shadows: A Radiolab Week of Sharks.

Jaws spawned a thousand imitators: sharks in tornados, sharks in avalanches, sharks that battle giant octopuses. Hollywood has officially turned sharks into monsters of every shape and size. And yet, somehow, there will always be more.

But drop below the surface, into the cold, quiet blue, and another creature appears. One that has survived mass extinctions, outlasted ancient predators and pre-dates Mount Everest, the existence of trees, even the rings of Saturn. A shark that is somehow even more remarkable than sharks in tornadoes.

Today, we go visit that shark. 

Special thanks to Andrew Fox, the entire team at Rodney Fox Shark Expeditions, John Long whose book The Secret History of Sharks inspired our obsession with sharks, and Greg Skomal, whose wonderful new book on his life studying white sharks is Chasing Shadows: My Life Tracking the Great White Shark.

EPISODE CREDITS: 
Reported by - Rachael Cusick
with help from - Pat Walters
Produced by - Rachael Cusick and Simon Adler
with help from - Pat Walters
Sound design contributed by - Jeremy Bloom
with mixing help from - Jeremy Bloom
Fact-checking by - Natalie Middleton
and Edited by  - Pat Walters

EPISODE CITATIONS:
Videos - 
Loved learning about all the different kinds of sharks there are? Check out even more Jaida Elcock’s videos on sharks.

Book - 
The Secret History of Sharks by John Long 

Chasing Shadows: My Life Tracking the Great White Shark by Greg Skomal

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Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.
Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

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