logo
episode-header-image
Jun 18
28m 53s

The Shark Inside You

Wnyc Studios
About this episode

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

Today, we take a trip across the world, from the south coast of Australia to … Wisconsin. Here, scientists are scouring shark blood to find one of nature’s hidden keys, a molecular superhero that might unlock our ability to cure cancer: shark antibodies. They’re small. They’re flexible. And they can fit into nooks and crannies on tumors that our antibodies can’t.

We journey back 500 million years to the moment sharks got these special powers and head to the underground labs transforming these monsters into healers. Can these animals we fear so much actually save us? 

Special thanks to Mike Criscitiello, David Schatz, Mary Rose Madden, Ryan Ogilvie, Margot Wohl, Sofi LaLonde, and Isabelle Bérubé.

EPISODE CREDITS: 
Reported by - Becca Bressler
Produced by - Becca Bressler and Matt Kielty
Original music from - Matt Kielty and Jeremy Bloom
Sound design contributed by - Matt Kielty, Jeremy Bloom, and Becca Bressler
with mixing help from - Jeremy Bloom
Fact-checking by - Diane Kelly
and Edited by  - Pat Walters

Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!

Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.

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 Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

Up next
Aug 22
The Medical Matchmaking Machine
As he finished his medical school exam, David Fajgenbaum felt off. He walked down to the ER and checked himself in. Soon he was in the ICU with multiple organ failure. The only drug for his condition didn’t work. He had months to live, if that. If he was going to survive, he was ... Show More
1h 1m
Aug 15
Weighing Good Intentions
In an episode first released in 2010, then-producer Lulu Miller drives to Michigan to track down the endangered Kirtland’s warbler. Efforts to protect the bird have lead to the killing of cowbirds (a species that commandeers warbler nests), and a prescribed burn aimed at creating ... Show More
25m 29s
Aug 8
The Menopause Mystery
Until recently, scientists assumed humans were the only species in which females went through menopause, and lived a substantial part of their lives after they were no longer able to reproduce. And they had no idea why that happens, and why evolution wouldn’t push females to keep ... Show More
38m 58s
Recommended Episodes
Jul 2024
What's Going On With Sharks?
We’re getting in on all the Shark Week fun here on Getting Curious with Dr. Gavin Naylor! Jonathan and Gavin dive deep into all things sharks: Are attacks really becoming more common, or is that just our perception? Why are there only 530 species of sharks, and what makes them so ... Show More
54m 59s
Jul 9
Shark Week Gets Toxic: Forrest Galante Tracks Alien Sharks
Shark Week returns July 20 on Discovery! This episode is the Shark Week audio companion Part 1! Dr. Samantha Yammine dives into the most surprising shark science of 2025, from sharks that make noise to the nano-scale ‘sharkitecture’ inside their skeletons. Sam also interviews For ... Show More
31m 27s
Jun 11
Macrophycology (SEAWEED) with Patrick Martone, Charles Yarish, Danielle McHaskell, Angela Jones, and Becky Swerida
Moonlit seaweeds. Dreamy underwater forests. Mounds of beach debris. Not plants. Let’s talk about where seaweed grows and whether or not it will save us all. Macrophycology means “big-ass algae” so let’s join five dazzling seaweed enthusiasts: guest-in-chief Dr. Patrick Martone o ... Show More
1h 30m
Jan 2023
Top Human Origins Discoveries of 2022
2022 was another exciting year in human origins research! New fossil discoveries and ancient DNA research expanded our understanding of the past. We learned something surprising about the evolution of human speech, and new methodologies and showed promising potential to improve t ... Show More
35m 5s
Jan 2025
Combatting Climate Anxiety through Community Science
It’s easy to feel overwhelmed with the news these days and to fear for the future. What if you could interrupt doomscrolling and contribute to conservation at the same time? That’s the idea behind programs like Adventure Scientists, eBird and iNaturalist. Guest Gregg Treinish, fo ... Show More
14m 34s
Jun 11
What ‘Immortal’ Jellyfish and Famously Old Tortoises Tell Us about Aging
Animals’ lifespans can be far shorter or much longer than those of humans. Scientists are researching creatures such as “immortal” jellyfish and long-lived tortoises and digging deep into genetic codes to figure out why animals age—and what we can do to improve longevity in human ... Show More
14m 27s
Jun 11
What ‘Immortal’ Jellyfish and Famously Old Tortoises Tell Us about Aging
Animals’ lifespans can be far shorter or much longer than those of humans. Scientists are researching creatures such as “immortal” jellyfish and long-lived tortoises and digging deep into genetic codes to figure out why animals age—and what we can do to improve longevity in human ... Show More
14m 27s
Nov 2024
Spooky Science
It’s our Halloween special from a rain-soaked Jodrell Bank in Cheshire. We find out what you can see in a dark, dark Halloween night sky with space-watcher and Professor of astrophysics Tim O’Brien. Also this week, we meet some blood-sucking leeches, the horrors of pumpkin waste ... Show More
28m 11s
Jul 9
What Does an Ailing Coral Reef Sound Like?
Sick coral reefs are visually striking—bleached and lifeless, far from the vibrancy we’ve come to expect. But what does an unhealthy coral system sound like? In this rerun, conservation bioacoustics researcher Isla Keesje Davidson tells Science Quickly all about the changing soun ... Show More
16m 51s
Jul 2
A magical world at the ocean’s edge
In coastal California, researchers grapple with potentially losing a landscape they love. Guests: Rebecca Johnson, Director of the Center for Biodiversity and Community Science at the California Academy of Sciences; Peter Roopnarine, Curator of Invertebrate Zoology & Geology at t ... Show More
36m 42s