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Overheard at National Geographic

Bonus episode: The Surprising Superpowers of Sharks

Overheard at National Geographic

National Geographic

Science, Society & Culture

4.5 • 10.1K Ratings

🗓️ 13 July 2021

⏱️ 24 minutes

🧾️ Download transcript

Summary

Sharks have never been able to outswim their reputation as mindless killers, which is so entrenched that the U.S. Navy once even tried to weaponize them. But are sharks really just “remorseless eating machines” on the hunt for blood? Hop in the water with marine scientists for a look at sharks’ extraordinary senses and unique adaptability. For more information on this episode, visit nationalgeographic.com/overheard Want More? National Geographic’s SharkFest swims onto screens this July and August with six weeks of programming! Watch Shark Beach With Chris Hemsworth, the feature documentary Playing With Sharks, and other shark-infested programming all summer long on National Geographic and Disney+. You can read our stories about how sharks can navigate via the Earth’s magnetic field and even band together to hunt. And be sure to check out our list of the most fascinating shark discoveries in the last decade. Also explore: Lauren Simonitis is a member of a cool group called Minorities in Shark Science, which promotes inclusivity and diversity in shark science. You can read more about shark repellent research in Mary Roach’s book Grunt, and her latest book comes out September 14. It’s called FUZZ: When Nature Breaks the Law. If you like what you hear and want to support more content like this, please consider a National Geographic subscription. Go to natgeo.com/exploremore to subscribe today. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Our Shark Story starts in the late 1950s. Elvis Presley has just released Jail House

0:10.0

Rock. Jane Goodall is taking her very first trip to Kenya. His business is

0:14.5

willing to invent the laser sooner, although they don't quite know what to use it for.

0:18.3

And the space race is in full force. The Soviet Union has successfully launched

0:23.4

the satellite Sputnik I and the US is rushed to get their first satellite into

0:27.9

war. But they're not just looking at the sky. In August 1958, a Navy submarine

0:34.8

makes the first undersea journey to the geographic North Pole. The Cold War

0:39.6

scramble has the US looking for every available advantage. The military is

0:44.2

pouring funding into science like never before. They're even looking at the

0:48.0

animal world, which brings us to the sharks. The Navy is making a big effort to

0:54.1

understand more about these animals. In some researchers are pursuing projects

0:58.6

that shall we say are a bit more fringe. That's where you see a project that

1:03.9

hinges on sharks being the brutish, simple-minded killers people thought they

1:08.7

were. The Navy wants to see if they can take down an enemy ship using a shark.

1:15.0

Basically, torpedo the ship without a torpedo. It is using a shark. Shark Pito.

1:21.0

That was the hope. That's author Mary Roach. For decades, these shark

1:27.2

pito project records were classified. But Mary managed to get the records as part

1:32.5

of a story for Undark Magazine. Even though this project sounds like a wacky

1:37.2

historical footnote, the researchers had quite a plan. Strap explosives onto the

1:44.2

shark. The idea was to have a shark wear a kind of headset and carry a bomb.

1:50.4

And then come up with a way to guide them remotely to the ship that you want to

1:55.6

sink. The shark would have electrodes on the left and the right. Electrical

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